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 5975-01-069-1381
NSN 6130-01-396-5311
NSN 5835-01-632-6627
NSN 5975-01-507-1312
NSN 5975-01-269-5295
NSN 5985-01-631-3956
NSN 5915-00-389-1126
NSN 6610-01-044-4740
NSN 6150-00-044-1746
NSN 5920-01-160-0057
NSN 5965-00-153-5216
NSN 5996-00-026-9118