Schlage ND25, ND30, ND12EU, ND44, ND40 Service Manual
...
ND-Series
Service manual
Contents
5 Introduction
5 Lock assembly drawing index
6 Changes and additions
7 Lock assembly drawing index
13 Chassis
14 Passage latch
15 Passage latch with request-to-exit
16 Exit lock
17 Exit lock with request-to-exit
18 Exit lock— Electrically locked (fail safe) or electrically
unlocked (fail secure)
19 Exit lock— Electrically locked (fail safe) or
unlocked (fail secure)
with request-to-exit
20 Single dummy trim
21 Exit lock with blank plate
22 Special— classroom exit lock
23 Special— storeroom exit lock
24 Patio, bath/bedroom privacy and hospital privacy lock
25 Time out lock with Vandlgard
®
26 Entrance/oce and entrance lock
27 Vestibule lock
28 Store lock
29 Classroom lock
30 Special— classroom by storeroom lock
31 Special— communicating lock
32 Special— communicating lock with Vandlgard
33 Corridor lock
34 Classroom security lock
35 Storeroom lock
36 Storeroom lock with request-to-exit
37 Storeroom lock— Electrically locked (fail safe) or
electrically locked (fail safe)
38 Storeroom lock— Electrically locked (fail safe) or
electrically unlocked (fail secure) with request-to-exit
39 Institution lock
40 Faculty restroom lock
41 Entrance/oce and entrance lock with Vandlgard
42 Vestibule lock with Vandlgard
®
43 Classroom lock with Vandlgard
44 Classroom security lock with Vandlgard
45 Storeroom lock with Vandlgard
46 Storeroom lock with Vandlgard
47 Storeroom lock with Vandlgard
safe) or electrically unlocked (fail secure)
48 Storeroom lock with Vandlgard®— Electrically locked (fail
safe) or electrically unlocked (fail secure) with request-
to-exit
49 Corridor lock with Vandlgard
®
electrically
®
®
®
®
®
®
with request to exit
®
— Electrically locked (fail
51 Trim assemblies
52 Passage latch
53 Passage latch with request-to-exit
54 Exit lock
55 Exit lock with request-to-exit
56 Exit lock—electrically locked (fail safe) or electrically
unlocked (fail secure)
57 Exit lock— electrically locked (fail safe) or electrically
unlocked (fail secure) with request-to-exit
58 Single dummy trim
59 Exit lock with blank plate
60 Special—classroom exit lock
61 Special—storeroom exit lock
62 Special—patio lock
63 Bath/bedroom privacy lock
64 Hospital privacy lock
65 Time out lock with Vandlgard
66 Entrance/oce lock
67 Entrance/oce lock
68 Vestibule lock
69 Special—ND60 with closed outside lever
70 Store lock
71 Classroom lock
72 Special—classroom by storeroom lock
73 Special—communicating lock
74 Special—communicating lock with Vandlgard
75 Corridor lock
76 Classroom security lock
77 Storeroom lock
78 Storeroom lock with request-to-exit
79 Storeroom lock— electrically locked (fail safe) or
electrically unlocked (fail secure)
80 Storeroom lock—electrically locked (fail safe) or
electrically unlocked (fail secure) with request-to-exit
81 Institution lock
82 Faculty restroom lock
83 Entrance/oce lock wtih Vandlgard
84 Entrance lock with Vandlgard
85 Vestibule with Vandlgard
86 Classroom lock with Vandlgard
87 Classroom security lock with Vandlgard
88 Storeroom lock with Vandlgard
89 Storeroom lock with Vandlgard® with request-to-exit
90 Storeroom lock with Vandlgard
safe) or electrically unlocked (fail secure)
91 Storeroom lock with Vandlgard®—electrically locked (fail
secure) or electrically unlocked (fail secure) with request-
to-exit
92 Corridor lock with Vandlgard
®
®
®
®
®
®
®
®
— electrically locked (fail
®
®
Schlage • ND-Series service manual • iii
93 Conversion
93 Lever conversion
93 Button and plunger assembly conversion
94 Spring cage conversion
95 Parts and kits
95 Conversion kits
96 Levers
96 Tactile warning
97 Roses
98 Full size IC and SFIC (small format interchangeable core)
configurations
99 Cylinders
100 Competitor cylinder options
101 Latches
101 Strikes
102 Screws, screw packs and special parts
103 Installation tools and kits
105 Electrified locks
105 ND-Series EL, electrically locked (fail safe)
105 Allegion Connect
106 Request-to-exit feature
107 Finishes
107 Finish codes and descriptions
107 Ordering procedures
108 Limited warranty
iv • Schlage • ND-Series service manual
Introduction
This manual contains a complete listing of ND-Series (Grade 1) cylindrical lock parts and assemblies manufactured by the
Schlage Lock Company. This edition lists components of ND-Series locks manufactured afer February, 2017.
This manual provides exploded views of each lock chassis and trim assembly with an accompanying chart to identify parts for
replacement purposes, along with lock trim ordering procedures, general cylinder information, and all auxiliary components of
the ND-Series cylindrical locks.
Standard Features*
Exceeds BHMA A156.2 requirements for Grade 1 cylindrical locks.
Exceeds BHMA A156.25 requirements for indoor electrified locks.
Certifications
Latch
Strike
Backset
Cylinder 6-Pin solid brass, keyed 6-pin, S123 keyway, keyed different (KD)**
Door Range
Keys Two nickel silver cut keys per lock, 6-pin, S123 section**
* Locks are furnished with standard features unless otherwise specified.
** Items specified in C keyway will be furnished with cylinder keyed 5-pin and with 5-pin keys unless otherwise specified.
UL10C listed for 3-hour fire doors up to 4'0" x 10'0"
Meets Florida Building Code (ASTM E330, E1886, E1996) and Miami-Dade (TAS 201, 202, 203)
requirements for hurricanes.
1Z\,” x 2
Z\v”, Square corner faceplate, 1” housing diameter, Z\x” throw
Z\v” x 4M\,”, ANSI, Square corner, no box
1
C\v”
2
Standard Lock Functions: 1
B\,” – 2Z\,”; Vandlgard
®
Lock Functions: 1B\ ,” – 2Z\,”; ND85 Function: 1C\v” – 2”
Lock assembly drawing index
The lock assembly drawing index provides illustrations and textual descriptions of available functions. Page numbers for full
trim and chassis drawings are referenced.
Outside Inside
Vandlgard
Lever
®
Deadlatch
Key Push button
Springlatch
Blank Plate
Active Lever
Fixed Lever
Turn/push button
Schlage • ND-Series service manual • 5
Introduction
Changes and additions
• Deadlatch 13-047 (2C\v" backset, square corner) and 13-049 (electrified deadlatch) are replaced by 13-247. Springlatch
13-048 (2
• Electrified functions ND12EL/EU, ND80EL/EU and ND96EL/EU are upgraded with an electric motor assembly replacing
the solenoid and clip. Keycams N123-024 and N123-025 are replaced by keycam N223-066.
• Spring cage assembly and lever upgrades affect all spring cages, all levers, the chassis adjustment plate, interior buttons
and plunger assemblies.
• New component and assembly part numbers are indicated with a "" symbol and highlighted in gray throughout this
manual.
• For detailed lists of original and new parts and assemblies, and kits for lock conversion, refer to Conversion on page 93
and Parts and kits on page 95.
C\v" backset, square corner) is replaced by 13-248.
6 • Schlage • ND-Series service manual
Lock assembly drawing index
Lock assembly drawing index
Function ANSI/BHMA A156.2, 2011, Series 4000, Grade 1 Trim Chassis
Schlage ANSI Description Outside function Inside function Page Page
ND10 F75 Passage latch Lever is always unlocked.
Lever is always unlocked and
is always free for immediate
egress.
With available request-to-exit
(RX) feature.
52 14
ND12 F89 Exit lock Lever is always fixed.
ND12EL Exit lock —
electrically locked
(fail safe)
ND12EU Exit lock—
electrically
unlocked (fail
secure)
ND170 Single dummy trim Inactive trim for one side
ND25 F89 Exit lock with blank
plate
Lever is continuously
locked electrically until
unlocked by switch or
power failure.
Auxiliary latch deadlocks
latchbolt when door is
closed.
Lever is continuously
locked mechanically
until unlocked by electric
current.
Auxiliary latch deadlocks
latchbolt when door is
closed.
of door. Use for door pull
or as matching inactive
trim.
Blank plate.
Lever is always unlocked and
is always free for immediate
egress.
With available request-to-exit
(RX) feature.
Lever is always unlocked and
is always free for immediate
egress.
With available request-to-exit
(RX) feature.
Lever is always unlocked and
is always free for immediate
egress.
With available request-to-exit
(RX) feature.
Inside lever is always
unlocked and is always free
for immediate egress.
54
55
56
57
56
57
58 20
59 21
16
17
18
19
18
19
ND25 x 70 Classroom exit
lock
Specify per
XN12-004
ND25 x 80 Storeroom exit
lock
Specify per
XN12-005
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.
Blank plate.
Blank plate.
Key locks or unlocks lever. 60 22
Key in fixed inside lever
retracts latch.
Schlage • ND-Series service manual • 7
61 23
Lock assembly drawing index
Function ANSI/BHMA A156.2, 2011, Series 4000, Grade 1 Trim Chassis
Schlage ANSI Description Outside function Inside function Page Page
ND30 F77 Patio lock
Specify per
XN12-007
ND40 F76 Bath/bedroom
privacy lock
ND44 Hospital privacy
lock
ND45 Time out lock Caretaker side: Inside
ND50 F82 Entrance/oce
lock
ND53 F109 Entrance lock Push/turn button: Key
ND60 F88 Vestibule lock Latch retracted by key
May be opened from
outside with small
screwdriver or
emergency release tool.
Unlocked from outside
by turning emergency
turn-button.
lever (detention side) is
locked by pushing and
holding button. Inside
lever is locked until
button is released. Lever
always retracts latch.
Lever is unlocked with
key or by turning inside
lever, when push-button
is pushed and locked on
inside.
retracts latch when
button pushed and
turned until button is
manually unlocked.
Push-button: Lever is
unlocked with key when
push-button is pushed.
when locked by key
ininside lever.
Push-button locks outside
lever. Turning inside lever or
closing door releases
push-button preventing
lock-out.
Lever is always unlocked and
is always free for immediate
egress.
Push-button locks outside
lever. Turning inside lever or
closing door releases
push-button.
Inside lever is always free for
immediate egress.
Push-button locks outside
lever. Turning inside lever or
closing door releases
push-button.
Inside lever is always free for
immediate egress.
Detention side: Lever retracts
latch unless outside
(caretaker side) button is
depressed.
Vandlgard allows inside
spindle to disengage from
latch when locked.
Push-button locks outside
lever. Turning inside lever
releases push-button.
Inside lever is always free for
immediate egress.
Push/turn-button: Pushing
and turning button locks
outside lever until manually
unlocked.
Push-button: Pushing button
locks outside lever until
unlocked by key outside or by
turning inside lever.
Inside always free for
immediate egress.
Inside lever is always
unlocked and is always free
for immediate egress. Inside
key locks and unlocks outside
lever.
62 24
63 24
64 24
65 25
66 26
67 26
68 27
ND60 Vestibule lock with
closed outside
lever
Specify per
XN12-001
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.
8 • Schlage • ND-Series service manual
Same as ND60 except
outside lever is closed.
Same as ND60. Inside lever is
always fee for immediate
egress.
69 27
Lock assembly drawing index
Function ANSI/BHMA A156.2, 2011, Series 4000, Grade 1 Trim Chassis
Schlage ANSI Description Outside function Inside function Page Page
ND66 F91 Store lock Key locks or unlocks
both levers
simultaneously.
Key locks or unlocks both
levers simultaneously.
70 28
ND70 F84 Classroom lock Outside lever locked or
ND70 x 80 Classroom by
ND72 Communicating
ND72 Vandlgard
ND73 F90 Corridor lock Locked or unlocked by
ND75 F110 Classroom security
®
Storeroom lock
Specify per
XN12-006
lock
Specify per
XN12-002
Communicating
lock with
Vandlgard
Specify per
XN12-003
lock
unlocked by key.
Outside lever locked or
unlocked by key.
Outside lever only locked
or unlocked by key.
Same as ND72.
Vandlgard allows
outside spindle to
disengage from latch
when locked. Both levers
are clutching.
outside key. When locked
by key it can only be
unlocked by key.
Push-button locks from
inside.
Outside lever locked or
unlocked by key in either
lever.
Inside lever is always
unlocked and always free for
immediate egress.
Key in fixed inside lever
retracts latch.
Inside lever only locked or
unlocked by key.
Same as ND72.
Vandlgard allows inside
spindle to disengage from
latch when locked.
Inside lever is always free for
immediate egress.
Push-button locks outside
lever. Turning lever or closing
door releases button. Inside
lever is always unlocked and
is always free for immediate
egress.
Key locks or unlocks outside
lever. Inside lever is always
unlocked and is always free
for immediate egress.
71 29
72 30
73 31
74 32
75 33
76 34
ND80 F86 Storeroom lock Lever is fixed. Entrance
ND80EL Storeroom
lock—electrically
locked (fail safe)
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.
by key only.
Lever is continuously
locked electrically.
Unlocked by key outside
or by switch or power
failure. When locked, key
retracts latch.
Auxiliary latch deadlocks
latchbolt when door is
closed.
Inside lever is always
unlocked and is always free
for immediate egress.
With available request-to-exit
(RX) feature.
Inside lever is always
unlocked and is always free
for immediate egress.
With available request-to-exit
(RX) feature.
Schlage • ND-Series service manual • 9
77
78
79
80
35
36
37
38
Lock assembly drawing index
Function ANSI/BHMA A156.2, 2011, Series 4000, Grade 1 Trim Chassis
Schlage ANSI Description Outside function Inside function Page Page
ND80EU Storeroom
lock—electrically
unlocked
(Fail secure)
ND82 F87 Institution lock
Lever is continuously
locked until unlocked by
key outside or by electric
current. When locked,
key retracts latch.
Auxiliary latch deadlocks
latchbolt when door is
closed.
Lever is fixed. Entrance
by key only.
Inside lever is always
unlocked and is always free
for immediate egress.
With available request-to-exit
(RX) feature.
Lever is fixed. Exit by key only. 81 39
79
80
37
38
ND85 Faculty restroom
lock
ND91 F82 Entrance/oce
lock with
Vandlgard
ND92 F109 Entrance lock with
Vandlgard
ND93 F88 Vestibule lock with
Vandlgard
ND94 F84 Classroom lock
with Vandlgard
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.
Lever is fixed. Entrance
by key only.
Lever is unlocked with
key when push-button is
pushed. Vandlgard
allows outside spindle to
disengage from latch
when locked.
When turn/push-button
is pushed and turned,
key retracts latch. When
push-button is pushed,
lever is unlocked with
key. Vandlgard allows
outside spindle to
disengage from latch
when locked.
Latch retracted by key
when locked by inside
key. Key locks and
unlocks lever. Vandlgard
allows outside spindle to
disengage from latch
when locked.
Outside lever
disengaged or unlocked
by key. Vandlgard allows
outside spindle to
disengage from latch
when locked.
Push-button activates
occupancy indicator, allowing
only emergency master key to
operate. Turning lever or
closing door releases
occupancy indicator. Rotation
of spanner-button by spanner
key provides lock-out feature
by keeping indicator thrown.
Inside lever is always free for
immediate egress.
Push-button disengages
outside lever. Turning inside
lever or outside key releases
push-button.
Inside lever is always free for
immediate egress.
Turn/push-button: Pushing
and turning button
disengages outside lever
until manually unlocked.
Push-button: Pushing button
disengages outside lever until
unlocked by turning inside
lever or by key outside.
Inside always free for
immediate egress.
Outside lever is disengaged
by key inside.
Inside lever is always
unlocked and is always free
for immediate egress.
Inside lever is always
unlocked and is always free
for immediate egress.
82 40
83 41
84 41
85 42
86 43
10 • Schlage • ND-Series service manual
Lock assembly drawing index
Function ANSI/BHMA A156.2, 2011, Series 4000, Grade 1 Trim Chassis
Schlage ANSI Description Outside function Inside function Page Page
ND95 Classroom security
lock with
Vandlgard
ND96 F86 Storeroom lock
with Vandlgard
ND96EL Storeroom lock
with Vandlgard —
electrically locked
(Fail safe)
ND96EU Storeroom lock
with Vandlgard —
electrically unlocked
(Fail secure)
ND97 Corridor lock with
Vandlgard
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.
Outside lever locked or
unlocked by key in either
lever. Vandlgard allows
outside spindle to
disengage from latch
when locked.
Lever always disengaged.
Entrance by key only.
Vandlgard allows
outside spindle to
disengage from latch
when locked.
Lever is continuously
disengaged electrically.
Unlocked by key or by
power failure or switch.
Auxiliary latch deadlocks
latchbolt when door is
closed. Vandlgard allows
outside spindle to
disengage from latch
when locked.
Lever is continuously
disengaged until
unlocked by key or
electric current. Auxiliary
latch deadlocks latchbolt
when door is closed.
Vandlgard allows
outside spindle to
disengage from latch
when locked.
Locked or unlocked by
key. When locked by key,
outside lever can only be
unlocked by key.
Vandlgard allows
outside spindle to
disengage from latch
when locked.
Key disengaged or unlocks
outside lever.
Inside lever is always
unlocked and is always free
for immediate egress.
Inside lever is always
unlocked and is always free
for immediate egress.
With available request-to-exit
(RX) feature.
Inside is always free for
immediate egress.
With available request-to-exit
(RX) feature.
Inside is always free for
immediate egress.
With available request-to-exit
(RX) feature.
Push-button locking. Turning
lever or closing door releases
button. Inside is always
unlocked and free for
immediate egress.
87 44
88
89
90
91
90
91
92 49
45
46
47
48
47
48
Schlage • ND-Series service manual • 11
12 • Schlage • ND-Series service manual
Chassis
14 Passage latch
15 Passage latch with request-to-exit
16 Exit lock
17 Exit lock with request-to-exit
18 Exit lock— Electrically locked (fail safe) or electrically unlocked (fail secure)
19 Exit lock— Electrically locked (fail safe) or
20 Single dummy trim
21 Exit lock with blank plate
22 Special— classroom exit lock
23 Special— storeroom exit lock
24 Patio, bath/bedroom privacy and hospital privacy lock
25 Time out lock with Vandlgard
®
26 Entrance/oce and entrance lock
27 Vestibule lock
28 Store lock
29 Classroom lock
30 Special— classroom by storeroom lock
31 Special— communicating lock
32 Special— communicating lock with Vandlgard
33 Corridor lock
34 Classroom security lock
35 Storeroom lock
36 Storeroom lock with request-to-exit
37 Storeroom lock— Electrically locked (fail safe) or electrically locked (fail safe)
38 Storeroom lock— Electrically locked (fail safe) or electrically unlocked (fail secure) with request-to-exit
39 Institution lock
40 Faculty restroom lock
41 Entrance/oce and entrance lock with Vandlgard
42 Vestibule lock with Vandlgard
®
43 Classroom lock with Vandlgard
44 Classroom security lock with Vandlgard
45 Storeroom lock with Vandlgard
46 Storeroom lock with Vandlgard
47 Storeroom lock with Vandlgard®— Electrically locked (fail safe) or electrically unlocked (fail secure)
48 Storeroom lock with Vandlgard®— Electrically locked (fail safe) or electrically unlocked (fail secure) with request-to-exit
49 Corridor lock with Vandlgard
®
electrically unlocked (fail secure)
®
®
®
®
®
®
with request to exit
with request-to-exit
Chassis
Passage latch
ND10
37
52
23
30
38
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
23 Outside housing 24088544
24 Inside hub 24085037
29 Slide N523-149
1
53
a
a
29
38
24
No. Description Part number
30 Slide clip N523-025
37 Adjustment plate N523-054
38 Spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
a
6
* Not sold separately as a part.
Designates new parts or assemblies.
14 • Schlage • ND-Series service manual
Chassis
Passage latch with request-to-exit
ND10 RX
37
52
23
30
38
a
a
29
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
23 Outside housing 24088544
27 Inside hub, electrified and RX 24085078
29 Slide N523-149
30 Slide clip N523-025
1
53
a
49
38
a
27
No. Description Part number
37 Adjustment plate N523-054
38 Spindle N523-177
48 RX harness N523-194**
49 RX harness screw N523-135
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
6
48
* Not sold separately as a part.
* For RX details, see Request-to-exit feature on page 106.
Designates new parts or assemblies.
Schlage • ND-Series service manual • 15
Chassis
Exit lock
ND12
37
52
23
22
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
8 Keycam assembly N123-008
22 Spindle N523-013
23 Outside housing 24088544
24 Inside hub 24085037
30
8
1
53
a
a
a
29
a
38
24
No. Description Part number
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
38 Spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
6
* Not sold separately as a part.
Designates new parts or assemblies.
16 • Schlage • ND-Series service manual
Chassis
Exit lock with request-to-exit
ND12 RX
37
52
23
22
8
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
8 Keycam assembly N123-008
22 Spindle N523-013
23 Outside housing 24088544
27 Inside hub, electrified and RX 24085078
29 Slide N523-149
29
30
1
53
a
a
49
51
a
27
No. Description Part number
30 Slide clip N523-025
37 Adjustment plate N523-054
48 RX harness N523-194**
49 RX harness screw N523-135
51 RX inside spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
6
48
* Not sold separately as a part.
** For RX details, see Request-to-exit feature on page 106.
Designates new parts or assemblies.
Schlage • ND-Series service manual • 17
Chassis
Exit lock— Electrically locked (fail safe) or electrically unlocked (fail secure)
ND12EL or ND12EU
37
52
26
28
15
1
30
a
29
a
a
53
54
39
a
27
6
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
15 Electrified keycam assembly N223-066
26 Outside electrified housing 24088551
27 Inside hub, electrified and RX 24085078
28 Outside electrified spindle N523-019
29 Slide N523-149
* Not sold separately as a part.
** For electrified lock details, see Electrified locks on page 105.
Designates new parts or assemblies.
18 • Schlage • ND-Series service manual
No. Description Part number
30 Slide clip N523-025
37 Adjustment plate N523-054
39 Inside spindle electrified N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
54 Electrified motor assembly N223-062**
Chassis
Exit lock— Electrically locked (fail safe) or
with request-to-exit
ND12EL RX or ND12EU RX
37
52
26
28
15
a
a
1
electrically unlocked (fail secure)
30
a
29
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
15 Electrified keycam assembly N223-066
26 Outside electrified housing 24088551
27 Inside hub, electrified and RX 24085078
28 Outside electrifed spindle N523-019
29 Slide N523-149
30 Slide clip N523-025
53
a
54
49
39
a
27
6
48
No. Description Part number
37 Adjustment plate N523-054
39 Inside spindle electrified N523-177
48 RX harness N523-194**
49 RX harness screw N523-135
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
54 Electrified motor assembly N223-062**
* Not sold separately as a part.
** For RX details, see Request-to-exit feature on page 106. For electrified lock details, see Electrified locks on page 105.
Designates new parts or assemblies.
Schlage • ND-Series service manual • 19
Chassis
Single dummy trim
ND170
45
No. Description Part number
5 Spindle pin C604-340*
14 Spring cage assembly N123-019*
* Not sold separately as a part.
For mounting two ND170 as double trim, see page 58.
14
5
No. Description Part number
45 Dummy insert N523-069
20 • Schlage • ND-Series service manual
Chassis
Exit lock with blank plate
ND25
37
52
30
23
1
53
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
23 Outside housing 24088544
24 Inside hub 24085037
29 Slide N523-149
* Not sold separately as a part.
29
38
a
24
No. Description Part number
30 Slide clip N523-025
37 Adjustment plate N523-054
38 Spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
6
Schlage • ND-Series service manual • 21
Chassis
Special— classroom exit lock
ND25X70
37
52
23
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
29
30
1
25
53
a
a
10
22
a
6
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
10 Keycam assembly N123-010
22 Spindle N523-013
23 Outside housing 24088544
25 Inside hub 24085060
* Not sold separately as a part.
No. Description Part number
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
22 • Schlage • ND-Series service manual
Chassis
Special— storeroom exit lock
ND25X80
37
52
23
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
29
30
1
25
53
a
a
8
22
a
6
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
8 Keycam assembly N123-008
22 Spindle N523-013
23 Outside housing 24088544
25 Inside hub 24085060
* Not sold separately as a part.
No. Description Part number
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
Schlage • ND-Series service manual • 23
Chassis
Patio, bath/bedroom privacy and hospital privacy lock
ND30, ND40 and ND44
37
52
23
22
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
17
30
1
4
2
53
a
a
29
38
a
24
6
No. Description Part number
1 Slide spring C503-019
2 Restoring slide catch C604-187
4 Slide catch spring C604-191
6 Chassis screw L583-454
17 Keycam assembly N123-045
22 Spindle N523-013
23 Outside housing 24088544
* Not sold separately as a part.
Designates new parts or assemblies.
24 • Schlage • ND-Series service manual
No. Description Part number
24 Inside hub 24085037
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
38 Spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
Chassis
Time out lock with Vandlgard
ND45
37
52
23
a
®
30
22
11
1
53
a
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
11 Keycam assembly N123-011
22 Spindle N523-013
23 Outside housing 24088544
24 Inside hub 24085037
* Not sold separately as a part.
Designates new parts or assemblies.
29
38
a
24
No. Description Part number
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
38 Spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
6
Schlage • ND-Series service manual • 25
Chassis
Entrance/oce and entrance lock
ND50 and ND53
37
52
23
22
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
30
1
7
4
3
53
a
a
29
38
a
24
6
No. Description Part number
1 Slide spring C503-019
3 Slide catch C604-188
4 Slide catch spring C604-191
6 Chassis screw L583-454
7 Keycam assembly N123-007
22 Spindle N523-013
23 Outside housing 24088544
* Not sold separately as a part.
Designates new parts or assemblies.
26 • Schlage • ND-Series service manual
No. Description Part number
24 Inside hub 24085037
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
38 Spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
Chassis
Vestibule lock
ND60
37
52
23
30
22
7
1
a
53
a
a
a
41
29
40
38
a
24
6
a
42
43
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
7 Keycam assembly N123-007
22 Spindle N523-013
23 Outside housing 24088544
24 Inside hub 24085037
29 Slide N523-149
30 Slide clip N523-025
* Not sold separately as a part.
Designates new parts or assemblies.
No. Description Part number
37 Adjustment plate N523-054
38 Spindle N523-177
40 Plunger sleeve N523-063
41 Plunger N523-064
42 Cam pin N523-065
43 Cam N523-066
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
Schlage • ND-Series service manual • 27
Chassis
Store lock
ND66
37
52
23
22
9
1
30
a
a
a
53
a
29
a
44
9
22
a
25
6
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
9 Keycam assembly N123-076
22 Spindle N523-013
23 Outside housing 24088544
25 Inside hub 24085060
* Not sold separately as a part.
28 • Schlage • ND-Series service manual
No. Description Part number
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
44 Plunger bar N523-067
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
Chassis
Classroom lock
ND70
37
52
23
22
10
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
10 Keycam assembly N123-010
22 Spindle N523-013
23 Outside housing 24088544
24 Inside hub 24085037
30
1
53
a
a
29
38
24
No. Description Part number
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
38 Spindle N523-177
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
a
6
* Not sold separately as a part.
Designates new parts or assemblies.
Schlage • ND-Series service manual • 29
Chassis
Special— classroom by storeroom lock
ND70X80
37
52
23
22
10
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
29
30
1
25
53
a
a
8
22
a
6
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
8 Keycam assembly N123-008
10 Keycam assembly N123-010
22 Spindle N523-013
23 Outside housing 24088544
* Not sold separately as a part.
30 • Schlage • ND-Series service manual
No. Description Part number
25 Inside hub 24085060
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
Chassis
Special— communicating lock
ND72
37
52
23
30
22
10
a
a
a
Apply light film of 100% synthetic grease on surfaces with brush.
No. Description Part number
1 Slide spring C503-019
6 Chassis screw L583-454
10 Keycam assembly N123-010
22 Spindle N523-013
23 Outside housing 24088544
25 Inside hub 24085060
1
29
25
53
a
a
10
22
a
6
No. Description Part number
29 Slide N523-149
30 Slide clip N523-025
37 Adjustment plate N523-054
52 Gauge insert 23988066
53 Insert, inside hub N523-160*
* Not sold separately as a part.
Schlage • ND-Series service manual • 31
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