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 5915-01-193-9968
NSN 5965-01-218-5003
NSN 6110-01-456-8466
NSN 5905-01-287-9164
NSN 5985-01-434-5091
NSN 6220-01-407-5639
NSN 6220-00-415-7078
NSN 5950-01-258-4994
NSN 5905-00-105-3756
NSN 6320-01-252-2307
NSN 6620-01-046-3648
NSN 5930-00-754-7779