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 7035-01-091-1929
NSN 6145-01-226-5010
NSN 5945-01-620-0325
NSN 6135-01-647-0386
NSN 6240-01-118-7624
NSN 6620-00-317-7820
NSN 7035-01-143-0355
NSN 6650-01-505-3637
NSN 5965-00-705-1690
NSN 5895-00-140-8257
NSN 5930-01-350-9215
NSN 5895-01-487-7132