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 5975-01-552-9348
NSN 5945-01-415-3654
NSN 4140-01-033-4953
NSN 5945-01-651-3604
NSN 6135-01-568-9107
NSN 5999-01-463-3026
NSN 6685-00-160-6390
NSN 5975-01-540-0337
NSN 5920-01-146-4325
NSN 5985-01-386-1605
NSN 6105-00-863-6782
NSN 6110-01-437-9880