Connects the facepiece to the cartridge
NSN 6320-00-004-9158
NSN 6135-01-492-5717
NSN 6130-01-084-5145
NSN 5975-00-111-1226
NSN 5935-01-411-5981
NSN 6610-01-555-8791
NSN 5999-01-461-3930
NSN 5920-01-032-6471
NSN 6220-00-946-2955
NSN 6650-01-249-3201
NSN 5975-01-325-8634
NSN 6130-00-827-4518