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Series 31 for Operation at Sea Level
These reliable coaxial connectors have been in production since 1950. Available as plug connectors, kits and cable assemblies, they mate all series 311 Cond. 1 connectors and adaptors.

Voltage Rating: 6.5 kVDC

Series 310 for Operation at 70,000 feet
A sealed version of the series 31 that mates all series 311 Cond. 1 receptacles and adaptors.

Voltage Rating: 15 kVDC

Series 311 for Operation at 70,000 feet
This series features seals for reduced pressure operation, a shell-to-shell grounding spring finger shield and three polarizing conditions. The bayonet coupling has machined rings to designate polarization by either sight or feel.

Voltage Rating: 15 kVDC

Applications : These connectors are widely used in laboratory experiments and field testing of ordnance products.

Operating Temperature
-40 to 85 °C

Current Rating
10 Amps

Product Image
Unit of Measure
1 2 3 4 5 

Part Number

Series

Assembly Type

Polarization

Mating Compatibility

Panel Mounting Style

Voltage Rating

Assembly Type

Part #

178-7631-1 N/A 311 N/A Double-Ended Adapter N/A Cond. 1
N/A Mates all Series 311 Cond. 1 receptacles and adaptors. N/A N/A 15 kVDC N/A N/A
178-7631-2 N/A 311 N/A Double-Ended Adapter N/A Cond. 2
N/A Mates all Series 311 Cond. 2 receptacles and adaptors. N/A N/A 15 kVDC N/A N/A
178-7631-3 N/A 311 N/A Double-Ended Adapter N/A Cond. 3
N/A Mates all Series 311 Cond. 3 receptacles and adaptors. N/A N/A 15 kVDC N/A N/A
Unit of Measure
1 2 3 4 5