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 5985-01-563-8521
NSN 6610-01-632-2449
NSN 6220-01-183-4557
NSN 2925-01-129-1261
NSN 5935-01-485-7229
NSN 5910-00-515-3586
NSN 5945-01-452-9775
NSN 6240-01-573-9298
NSN 6685-00-445-8673
NSN 6220-01-308-8757
NSN 6620-00-581-8984
NSN 5945-01-103-8718