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 5950-00-082-0286
NSN 5945-01-014-4567
NSN 5905-01-360-9388
NSN 5915-01-203-3655
NSN 5990-01-328-9846
NSN 6685-01-095-5554
NSN 5905-00-711-2374
NSN 5990-01-660-9694
NSN 6130-01-033-5070
NSN 6220-01-459-3128
NSN 5915-00-857-9188
NSN 6240-01-091-0264