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 5950-00-216-5912
NSN 5905-01-419-3445
NSN 5855-01-495-1750
NSN 6240-01-186-6448
NSN 5835-01-422-2399
NSN 6110-01-446-6678
NSN 6240-00-174-1991
NSN 6150-01-656-3981
NSN 5895-01-354-2260
NSN 5920-01-367-2542
NSN 6145-00-582-1301
NSN 5975-00-105-8388