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 5965-01-187-3078
NSN 5835-01-186-4961
NSN 5965-01-026-1752
NSN 6620-00-241-5264
NSN 5910-00-111-1332
NSN 6685-01-495-1322
NSN 6105-00-106-6447
NSN 6650-00-373-9220
NSN 6130-01-330-1371
NSN 5835-01-046-5632
NSN 6220-00-175-7849
NSN 4140-00-924-8116