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 6150-01-610-2107
NSN 5996-01-233-1614
NSN 5999-00-185-6032
NSN 6135-01-415-1163
NSN 5985-01-007-8171
NSN 5855-01-597-1836
NSN 6145-01-126-6813
NSN 5985-01-087-3446
NSN 5975-01-457-1119
NSN 5975-00-432-4521
NSN 5945-00-170-8645
NSN 5935-01-270-6247