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 6220-01-368-9107
NSN 5905-01-113-6733
NSN 2925-00-956-3848
NSN 6105-00-210-2962
NSN 5945-01-234-3146
NSN 5910-00-435-9579
NSN 6135-01-017-3001
NSN 5855-00-455-6070
NSN 5998-01-089-9725
NSN 6610-01-459-0601
NSN 5996-01-018-7990
NSN 5915-01-654-0965