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 6650-00-195-7519
NSN 6645-01-633-1852
NSN 6685-00-958-9014
NSN 6240-01-513-0754
NSN 5930-01-363-3852
NSN 5935-01-005-0007
NSN 5990-00-542-6838
NSN 5915-01-360-5612
NSN 6645-00-979-0039
NSN 6240-00-266-6258
NSN 5855-00-451-6155
NSN 6130-01-035-5584