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 5999-01-660-9902
NSN 6135-01-025-8109
NSN 5920-01-429-9947
NSN 5996-00-456-1903
NSN 5975-01-364-8662
NSN 5855-00-057-6900
NSN 7035-01-127-9019
NSN 5990-01-626-3840
NSN 6645-01-180-3818
NSN 5920-01-130-9683
NSN 5915-01-501-0130
NSN 6130-00-735-9179