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 6135-01-322-4655
NSN 6220-01-605-5548
NSN 2925-01-459-8093
NSN 5935-01-259-1852
NSN 6240-01-385-5756
NSN 5835-01-232-6904
NSN 6135-01-393-4746
NSN 5935-01-354-1637
NSN 6110-00-107-8524
NSN 6650-01-234-4378
NSN 5910-00-873-2734
NSN 6620-01-623-5756