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 5920-00-371-1191
NSN 6105-00-136-4780
NSN 5996-01-258-5327
NSN 6685-00-116-8073
NSN 6135-01-502-8771
NSN 5965-01-013-0290
NSN 6110-01-308-6921
NSN 5945-01-512-1533
NSN 5855-00-925-0114
NSN 5930-00-996-7510
NSN 6105-01-617-5860
NSN 5835-01-470-3337