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 6105-01-166-7069
NSN 5965-01-248-3116
NSN 6685-00-449-7087
NSN 5990-00-991-4484
NSN 6150-00-245-2149
NSN 5910-01-283-2923
NSN 5999-00-935-8684
NSN 4140-01-625-2258
NSN 6685-01-569-2962
NSN 6240-01-627-0968
NSN 5975-01-142-7392
NSN 6130-00-832-3868