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 2925-01-009-9560
NSN 4140-01-410-8938
NSN 6105-00-264-3822
NSN 5950-01-456-0491
NSN 6145-01-443-3282
NSN 6145-01-328-7991
NSN 5930-01-012-4625
NSN 5915-00-209-0423
NSN 5950-01-156-6359
NSN 6110-01-495-2211
NSN 6110-00-132-1330
NSN 5915-01-443-3881