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 7035-01-512-0334
NSN 5915-01-065-1127
NSN 6620-01-278-8028
NSN 5960-01-305-5449
NSN 5935-00-382-2928
NSN 6240-00-204-9355
NSN 5910-01-024-9571
NSN 6685-01-441-8361
NSN 6110-00-870-5808
NSN 5960-01-177-0338
NSN 6240-01-066-5958
NSN 6610-01-226-2347