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 5930-01-179-1676
NSN 5935-01-608-1946
NSN 6645-01-311-9794
NSN 6220-01-080-5343
NSN 5935-00-659-6877
NSN 5920-01-025-1618
NSN 6110-00-756-9943
NSN 5960-00-804-2215
NSN 5855-01-314-8335
NSN 6150-01-634-0575
NSN 5855-00-145-3307
NSN 5920-01-202-1982