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 5990-01-601-7332
NSN 6685-01-411-5286
NSN 6620-01-490-5664
NSN 5975-01-138-0665
NSN 5905-00-111-2214
NSN 6650-01-533-1267
NSN 6320-01-396-2080
NSN 6685-01-583-4414
NSN 5945-01-315-7126
NSN 6150-00-208-3211
NSN 5998-01-602-8819
NSN 5930-01-387-8768