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 5996-00-472-9157
NSN 6220-00-554-5937
NSN 5920-01-199-5522
NSN 6105-01-499-4154
NSN 5920-00-196-3631
NSN 5920-00-954-3861
NSN 5920-00-908-1929
NSN 4140-01-278-6709
NSN 6150-01-518-0302
NSN 6645-01-418-8035
NSN 5990-01-565-2226
NSN 5996-01-202-8127