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 6150-00-177-2499
NSN 5925-01-579-5419
NSN 5835-01-132-7972
NSN 5998-00-795-7644
NSN 5920-00-084-6046
NSN 5915-01-129-4605
NSN 6220-01-415-3115
NSN 6220-01-015-2956
NSN 6135-01-215-1245
NSN 5999-01-260-8580
NSN 5835-00-827-1904
NSN 5935-01-279-1575