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 6320-01-352-5653
NSN 5905-00-976-9417
NSN 5835-01-330-8597
NSN 6220-01-013-9498
NSN 7035-01-217-7474
NSN 5985-01-437-5771
NSN 5855-01-537-1406
NSN 6220-01-603-8240
NSN 5985-00-726-6148
NSN 6685-01-411-2717
NSN 5950-01-330-1667
NSN 6610-00-575-7933