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 5915-01-441-7857
NSN 6145-01-534-2001
NSN 5915-01-451-4332
NSN 6610-00-251-0369
NSN 6685-01-290-2169
NSN 6110-00-994-7403
NSN 5855-00-004-0904
NSN 5835-00-226-7825
NSN 5975-01-125-5251
NSN 5835-01-550-5094
NSN 6240-01-195-1750
NSN 5935-00-152-7843