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 6685-01-199-1304
NSN 5945-01-207-9035
NSN 6130-01-351-0088
NSN 6105-01-226-0340
NSN 5920-01-460-2286
NSN 5998-01-468-5947
NSN 6110-01-017-8787
NSN 7035-00-111-4389
NSN 5975-00-689-6396
NSN 5975-01-025-9990
NSN 5925-00-896-4847
NSN 5905-01-161-0872