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 5975-01-188-6761
NSN 5975-01-470-8357
NSN 6650-00-266-6808
NSN 5999-01-113-8734
NSN 5855-00-962-5792
NSN 5945-01-082-2771
NSN 5910-01-423-9967
NSN 6150-01-173-8759
NSN 5965-01-178-7853
NSN 5855-00-466-2309
NSN 5905-00-241-9340
NSN 5975-01-020-7131