Ham-Let 122H, 122 HNR, 122HNG, 122HNOB, 122HCN Catalog Page
113
HAM-LET ADVANCED CONTROL TECHNOLOGY
CONNECTORS
Ordering
Information
T
Male NPT Size
L D
Min. Opening
W
Hex. Flat
inch mm inch mm inch
122H _ 1/16 1/16 1.01 25.7 0.12 3.0 5/16
122H _ 1/8 1/8 1.01 25.7 0.19 4.8 7/ 16
122H _ 1/4 1/4 1.40 35.6 0.28 7.1 9/16
122H _ 3/8 3/8 1.43 36.3 0.38 9.6 11/16
122H _ 1/2 1/2 1.84 46.7 0.47 11.9 7/8
122H _ 3/4 3/4 1.84 46.7 0.62 15.8 1
1/16
122H _ 1 1 2.32 58.9 0.87 22.1 1 3/8
122 H
HEX NIPPLE
Ordering
Information
T
Male NPT Size
T1
Male BSPT
ISO 7/1, BS21 Size
L N D
Min. Opening
W
Hex. Flat
inch mm inch mm inch mm inch
122HNR _ 1/8 1/8 1/8-28 1.01 25.6 0.38 9.7 0.1 9 4.8 7/16
122HNR _ 1/4 1/4 1/4-19 1.40 35.6 0.56 14.2 0.28 7.1 9/16
122HNR _ 3/8 3/8 3/8-19 1.43 36.3 0.56 14.2 0.38 9.6 11/16
122HNR _ 1/2 1/2 1/ 2-14 1.84 46.7 0.75 19.0 0.47 11.9 7/8
122HNR _ 3/4 3/4 3 /4-14 1.84 46.7 0.75 19.0 0.62 15.8 1
1/16
122HNR _ 1 1 1-11 2.32 58.9 0.94 23.9 0.87 2 2.1 1 3/8
122 HNR
HEX NIPPLE NPT TO BSPT
“D” Dimension is minimum opening. Dimensions are for reference only, and are subject to change without notice.
PRECISION INSTRUMENTATION PIPE FITTINGS
114
CONNECTORS
For Parallel Threads Sealing, see page 76
122 HNG
HEX NIPPLE
NPT TO BSPP
Ordering
Information
T
Male NPT Size
T1
Male BSPP
ISO 228/1, BS 2779
L F E D
Min. Opening
W
Hex. Flat
inch mm inch mm inch mm inch mm inch
122HNG _ 1/8 1/8 1/8- 28 1.07 27.2 0.28 7.1 0.54 13.8 0 .16 4.1 9/16
122HNG _ 1/4 1/4 1/4-19 1.44 36.6 0.44 11.2 0.71 18.0 0.23 5.8 3/4
122HNG _ 3/8 3/8 3/8-19 1.47 37.3 0.44 11.2 0.85 21.8 0.31 7.9 7/8
122HNG _ 1/2 1/2 1/ 2-14 1.78 45.2 0.56 14.2 1.02 26.0 0.47 11. 9 1
1/16
122HNG _ 3/4 3/4 3/4-14 1.95 49.5 0.62 15.7 1.26 32.0 0.62 15.8 1 5/16
122HNG _ 1 1 1-11 2.26 57.4 0.72 18.3 1.53 39.0 0.78 19.8 1 5/8
122HNOB
HEX NIPPLE NPT TO SAE/MS
STRAIGHT THREAD BOSS *
Ordering
Information
T
Male NPT Size
T1
Straight Thread UN
D L F W
Hex. Flat
O-Ring**
inch mm inch mm inch mm inch
122HNOB _ 1/4 X 7/16-20 1/4 7/16-20 0.20 5.1 1.2 0 30.5 0.36 9.1 9/16 -904
122HNOB _ 3/8 X 9/16-18 3/8 9/16-18 0.28 7.1 1.26 32.0 0.39 9.9 11/16 -906
122HNOB _ 1/2 X 3/4-16 1/2 3/4-16 0.42 10.7 1.5 3 38.9 0.44 11. 2 7/8 -908
122HNOB _ 3/4 X 1
1/16-12 3/4 1 1/16-12 0.62 15.7 1.75 44.4 0.59 15.0 1 1/4 - 912
122HNOB _ 1 X 1
5/16 -12 1 1 5/16-12 0.88 22.4 2.00 50.8 0.59 15.0 1 1/2 - 916
122HCN
CLOSE NIPPLE
Ordering
Information
T
Male NPT Size
D L
inch mm inch mm
122HCN _ 1/8 1/8 0.19 4.8 0.75 19 .1
122HCN _ 1/4 1/4 0.28 7.1 1.12 28.4
122HCN _ 3/8 3/8 0.38 9.6 1.12 28.4
122HCN _ 1/2 1/2 0.47 11 .9 1.50 38 .1
122HCN _ 3/4 3/4 0.62 15.7 1.50 38.1
122HCN _ 1 1 0.88 22.4 1.8 8 47.8
* Per SAE J1926 and MS 16142. See page 80 for mounting dimensions.
** O-rings used are Fluorocarbon FKM 90 Durometer. Other O-ring materials are available on request.
“D” Dimension is minimum opening. Dimensions are for reference only, and are subject to change without notice.
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