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 6610-01-545-0766
NSN 5945-01-070-7870
NSN 6110-01-445-6347
NSN 5935-01-630-1332
NSN 6220-00-953-0389
NSN 5910-01-531-2114
NSN 6650-01-457-6649
NSN 4140-00-351-7085
NSN 5915-01-475-5073
NSN 6150-01-198-5024
NSN 6685-01-617-7957
NSN 5945-00-007-9275