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 7035-01-364-8454
NSN 6320-01-123-6814
NSN 4140-01-189-5610
NSN 5910-00-082-5136
NSN 5999-01-090-0365
NSN 5990-01-652-7373
NSN 4140-01-022-1431
NSN 6645-01-616-7897
NSN 6320-01-227-2648
NSN 5985-00-404-9319
NSN 2925-00-065-9986
NSN 6150-01-499-7794