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 5975-01-384-7110
NSN 6620-00-452-5738
NSN 5998-00-005-0387
NSN 5996-01-331-6875
NSN 5960-01-553-4557
NSN 5930-00-007-0729
NSN 4140-01-158-6976
NSN 7035-00-371-7749
NSN 6110-00-492-1167
NSN 7035-01-194-9482
NSN 5965-01-549-5813
NSN 5960-00-910-3690