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 5925-01-167-0079
NSN 6610-01-076-4800
NSN 6150-01-303-1353
NSN 4140-01-334-1121
NSN 5990-00-495-2859
NSN 5905-00-584-8447
NSN 5910-01-224-8214
NSN 6685-01-587-5094
NSN 5996-01-072-5720
NSN 4140-01-305-9739
NSN 5920-01-356-4122
NSN 5990-00-822-9269