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 5996-01-550-8867
NSN 5935-01-434-3859
NSN 4140-01-152-2672
NSN 4140-01-050-8096
NSN 5855-00-014-5008
NSN 6150-00-227-0464
NSN 6650-01-097-6814
NSN 5925-01-432-2731
NSN 6620-00-064-7992
NSN 6645-00-664-4665
NSN 5950-00-021-1021
NSN 6150-01-133-4012