BS EN 3645-005:2019 Aerospace series. Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous Receptacle, hermetic, round flange, solder mounting. Product standard

Circular shape
Designations
Hermetic sealing
Electric sockets
Aircraft components
Environment (working)
Electrical components
Flanges
Temperature
Electric connectors
Electric contacts
Seatings
Dimensions
Threaded components

Link: BS EN 3645-005:2019 Aerospace series. Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous Receptacle, hermetic, round flange, solder mounting. Product standard
Source: BSI Standards