A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6145-01-133-7350
NSN 7035-01-164-6835
NSN 6650-01-467-2355
NSN 5930-00-919-1906
NSN 5985-01-509-8512
NSN 5950-01-407-0140
NSN 6240-01-212-9535
NSN 5965-01-005-0341
NSN 5999-01-367-7334
NSN 5935-01-433-2486
NSN 6135-01-204-8712
NSN 5915-01-104-5992