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 6685-01-192-8759
NSN 6105-00-297-3762
NSN 5905-00-673-6454
NSN 6610-01-579-0134
NSN 5965-00-237-8049
NSN 6150-00-554-3362
NSN 5950-01-487-3006
NSN 5915-00-222-6031
NSN 5920-00-127-9992
NSN 5990-01-609-4793
NSN 6610-01-544-1662
NSN 5975-00-927-3177