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 5910-00-203-5603
NSN 5945-01-146-4529
NSN 5935-00-723-0349
NSN 6110-01-454-5303
NSN 5945-01-345-5184
NSN 6110-01-437-4974
NSN 5950-01-365-8040
NSN 5930-01-022-5924
NSN 5855-01-250-2421
NSN 6150-01-253-1736
NSN 6110-01-606-1250
NSN 5996-01-077-2231