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 5905-01-204-1362
NSN 5999-01-472-5706
NSN 6685-01-146-4498
NSN 6150-01-474-5199
NSN 6130-00-103-7082
NSN 4140-01-116-3138
NSN 5999-00-106-7281
NSN 5910-01-506-5724
NSN 6220-01-055-9786
NSN 6110-01-469-3127
NSN 7035-00-834-2090
NSN 6130-01-024-1679