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 6150-01-242-4110
NSN 6610-00-250-1170
NSN 6645-00-017-8252
NSN 6135-01-608-9403
NSN 5920-00-221-4556
NSN 5990-01-601-7332
NSN 5935-01-095-0520
NSN 5998-01-362-0743
NSN 5915-01-575-3695
NSN 7035-01-660-3940
NSN 5996-01-612-3403
NSN 5950-01-415-5150