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 5910-01-592-1459
NSN 5915-01-317-4999
NSN 5945-00-224-3557
NSN 5835-01-406-4066
NSN 5910-01-500-5346
NSN 5915-00-193-1440
NSN 2925-00-925-0545
NSN 5998-00-752-7637
NSN 5965-00-961-1627
NSN 5925-01-048-0562
NSN 5905-00-308-7089
NSN 6685-00-445-4121