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 6150-00-392-0317
NSN 5835-01-463-2334
NSN 6685-00-434-0101
NSN 5945-00-032-1308
NSN 5835-01-408-0621
NSN 5855-00-011-5816
NSN 5960-00-624-4718
NSN 5998-00-010-8364
NSN 6645-01-149-9176
NSN 6110-00-132-6423
NSN 6240-01-350-4959
NSN 5930-01-601-4771