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 5965-00-942-1602
NSN 5935-00-067-7493
NSN 6135-01-579-3534
NSN 5910-01-529-4844
NSN 5999-01-418-2157
NSN 5990-00-518-3195
NSN 5855-01-424-7477
NSN 6610-01-553-1317
NSN 5925-01-606-8441
NSN 6110-01-454-3545
NSN 5990-01-644-3095
NSN 5950-01-594-0337