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 5920-01-510-9921
NSN 5910-01-415-7087
NSN 5990-00-226-7894
NSN 6650-01-345-2866
NSN 5925-01-336-1928
NSN 6610-00-226-4710
NSN 5950-01-576-5895
NSN 5920-01-243-4377
NSN 5950-00-510-3022
NSN 5945-01-164-8241
NSN 6685-01-385-4180
NSN 6220-01-499-9116