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 6220-00-725-7494
NSN 5975-01-456-9274
NSN 6320-01-352-8084
NSN 6135-00-862-5736
NSN 5990-01-512-9129
NSN 5925-01-323-6491
NSN 5975-00-284-6763
NSN 5960-00-008-6503
NSN 5910-01-532-6692
NSN 6685-01-317-1569
NSN 5920-01-335-6347
NSN 5895-00-419-3634