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 5855-01-116-8905
NSN 5999-01-088-4916
NSN 6320-01-484-7734
NSN 6130-00-863-8271
NSN 5905-00-990-1642
NSN 2925-01-578-7731
NSN 7035-01-023-7859
NSN 5925-01-613-7921
NSN 6620-01-195-7817
NSN 5915-01-602-9324
NSN 5835-00-814-1359
NSN 5920-01-268-0720