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 6320-01-332-7020
NSN 5960-00-188-8648
NSN 6610-01-161-4835
NSN 2925-01-468-7073
NSN 5999-00-112-0511
NSN 6130-00-608-9113
NSN 6240-01-288-0555
NSN 5985-01-592-1591
NSN 5930-01-463-7067
NSN 6220-01-485-2381
NSN 6220-01-130-3620
NSN 6650-01-437-8852