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 6320-01-054-3046
NSN 5930-01-288-2479
NSN 5935-01-320-5212
NSN 6145-00-432-7431
NSN 5895-00-350-9549
NSN 6685-00-498-0072
NSN 6620-01-239-9564
NSN 6220-01-089-8839
NSN 6145-00-442-3326
NSN 5855-00-879-7245
NSN 5965-01-136-5657
NSN 6240-00-580-0666