
VACUUM/PRESSURE FEEDTHROUGHS
24-Pin Connector
Atmosphere
Side
Housing 44.5 (1.75) O.D.
O-Ring Face Seal
 30.5 (1.20) Maximium Panel 
Thickness
Jam Nut (Supplied)
1  -18 UNS
1
/
4
47.5
(1.87)
82.6
(3.25)
117.3
(4.62) NOM
HERMETIC SEAL MULTIPIN CONNECTORS
MTC-24-SHL, backshell 
cable clamp.
PFTCC-12CU
PFTCC-12 Series
MTC-24-MC, 
male connector 
body.
MTC-24-FF, female 
connector body.
Fits MIL 
C-26500 Series 
Connectors
U Thermocouple Alloy or 
Copper Pins
U Fast PositiveConnections 
U Fully Compatible with 
OMEGA
®
 MTC Series 
Connectors
U 100% Inspected 
and Tested
Chemical Exposure 
Compatible: Oil, solvents, 
refrigerants, water, non-corrosive 
gases
Avoid: Strong acids and bases
SPECIFICATIONS
Material: Housing and Nut, 300 Series 
stainless steel; connector shell, 
electrodeless nickel plated O-ring: 
Butyl pins, fits 20 to 24 AWG wire
Pressure Rating: Maximum pressure: 
120 psi; Vacuum limit: 1 x 10
Leak Rates, Pressure: Leak rate at 
120 psi: 1 x 10 
at 29 in. Hg vac: 1 x 10
Leak Rates, Vacuum: Leak rate at 
15 psi: 10 x 10
–8
at 10
 Torr: 1 x 10–8 cc He/sec
Temperature Limits: 
-40 to 120°C (-40 to 248°F) 
Out Gasing: <0.003% VCM <0.4% 
Weight loss; Sample at 125°C 
(257°F), cold surface at 25°C (77°F)
–6
 cc air/sec; Leak rate 
–8
–7
 cc air/sec
 cc He/sec; Leak rate 
–8
 Torr
MTC-24-SHL, 
backshell cable 
MTC Series pins 
and sockets. See 
omega.com
All models shown smaller than actual size. 
MTC series multipin connectors and accessories 
sold separately. See omega.com
To Order 
 MODEL NO.   DESCRIPTION
 PFTCC-12CU  Connector for 12 wire pairs, Cu
 PFTCC-12J   Connector for 12 wire pairs, J thermocouple 
 PFTCC-12K   Connector for 12 wire pairs, K thermocouple 
 PFTCC-12E   Connector for 12 wire pairs, E thermocouple 
 PFTCC-12T   Connector for 12 wire pairs, T thermocouple
PFTCC connectors are for use with MTC series pins; See omega.com 
Ordering Example: PFTCC-12K, 24-pin connector for MIL C-26500 connectors. 
Compatible with 12 type-K thermocouples; cable clamps, connector bodies and MTC pins  
sold separately.
Visit omega.com/pftcc for Pricing and Details
clamp.
Dimensions: 
mm (inch)
C-27