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 5905-00-530-8064
NSN 6685-01-039-0701
NSN 5835-00-378-1429
NSN 6620-01-467-6795
NSN 5930-01-328-6511
NSN 5960-01-265-4487
NSN 5935-01-124-3115
NSN 6610-01-321-1656
NSN 6145-00-889-1492
NSN 5998-01-586-7358
NSN 5905-01-634-0595
NSN 6650-01-159-4251