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 7035-00-267-5424
NSN 6620-00-190-8109
NSN 6685-00-144-6362
NSN 5925-00-114-2253
NSN 5996-00-120-1133
NSN 5935-00-239-4976
NSN 5925-00-990-0238
NSN 5925-00-926-8260
NSN 6135-01-281-4758
NSN 6220-01-504-3610
NSN 5999-01-444-4068
NSN 5985-01-232-0803