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 5905-01-423-9917
NSN 6110-00-288-4179
NSN 5895-00-518-1593
NSN 6320-01-346-5158
NSN 5895-00-889-0104
NSN 5855-01-503-6171
NSN 6645-01-415-6093
NSN 5835-00-019-1816
NSN 5930-00-593-2516
NSN 5910-01-510-3935
NSN 6650-00-607-1351
NSN 5975-00-366-7440