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 6685-00-676-6320
NSN 6130-00-070-6140
NSN 6145-01-216-4388
NSN 5915-00-781-3019
NSN 7035-01-026-1171
NSN 5930-01-117-5866
NSN 6145-01-227-5246
NSN 5975-00-549-0090
NSN 5996-01-282-9635
NSN 6110-00-006-6381
NSN 5935-01-243-4210
NSN 5915-01-129-3268