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 5985-01-594-5972
NSN 7035-01-598-8962
NSN 5965-01-306-6527
NSN 6220-01-078-1625
NSN 5910-00-683-3731
NSN 6135-00-010-5275
NSN 5965-01-097-4867
NSN 5996-01-442-3676
NSN 6650-00-393-0447
NSN 4140-00-340-7685
NSN 7035-00-585-2113
NSN 5895-01-419-1483