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 5920-00-449-6245
NSN 6105-00-242-6835
NSN 4140-01-173-7867
NSN 4140-01-420-2840
NSN 5930-00-474-1434
NSN 6110-01-116-2353
NSN 6130-00-907-7425
NSN 5998-01-324-5282
NSN 5925-01-580-1154
NSN 5999-01-530-6993
NSN 6240-01-644-5022
NSN 5985-01-368-1194