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 7035-00-870-0290
NSN 6145-01-048-6196
NSN 5855-00-610-4052
NSN 6650-01-395-3963
NSN 5905-01-116-1081
NSN 5996-00-401-4904
NSN 7035-01-304-4138
NSN 5998-00-699-2514
NSN 6135-01-299-7252
NSN 5960-01-224-7151
NSN 6110-00-614-4763
NSN 6220-00-417-3615