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 6220-01-481-3742
NSN 5945-00-099-9857
NSN 6240-01-158-0402
NSN 5920-01-512-2054
NSN 5925-01-555-7565
NSN 5910-01-460-8784
NSN 5915-00-221-9610
NSN 5920-01-175-5949
NSN 4140-01-579-5214
NSN 5915-00-944-7670
NSN 6105-01-546-6170
NSN 6110-01-546-3540