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 6650-00-882-3576
NSN 5945-01-218-5645
NSN 4140-00-186-3062
NSN 2925-01-132-5827
NSN 5855-00-832-7316
NSN 5935-00-228-0591
NSN 5999-01-346-5211
NSN 5905-01-167-4271
NSN 5925-01-190-6719
NSN 6685-01-634-0611
NSN 5975-01-073-3394
NSN 5996-01-151-1607