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 6150-01-200-8594
NSN 6135-00-112-8637
NSN 5990-01-211-6136
NSN 5975-00-140-5352
NSN 6240-01-566-0816
NSN 6150-01-327-7077
NSN 5855-01-280-9735
NSN 6110-01-576-8832
NSN 5945-00-156-0781
NSN 5930-01-291-6719
NSN 7035-01-168-3596
NSN 5996-01-364-2757