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 5996-00-977-1101
NSN 4140-01-330-3322
NSN 6110-00-456-2058
NSN 5965-01-185-2026
NSN 5915-01-574-6481
NSN 6320-01-132-2746
NSN 6645-01-611-0968
NSN 6610-01-449-8906
NSN 6645-01-485-3517
NSN 6645-01-429-6768
NSN 5835-01-131-2027
NSN 6220-00-306-7239