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 5960-00-446-5040
NSN 5855-00-586-6255
NSN 6105-01-324-5947
NSN 5855-00-294-7532
NSN 5998-01-620-8766
NSN 6610-00-875-7639
NSN 5910-01-384-2490
NSN 6650-00-400-2625
NSN 5999-01-550-9650
NSN 5999-00-495-0432
NSN 5935-00-261-6524
NSN 6320-01-215-1133