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 6645-01-315-2010
NSN 5915-00-788-8841
NSN 5998-01-415-3286
NSN 6240-01-040-7640
NSN 5925-01-287-9206
NSN 6105-00-504-6261
NSN 5835-01-065-3316
NSN 5965-00-791-0964
NSN 5905-00-484-9943
NSN 5935-00-256-5427
NSN 6105-01-360-5629
NSN 5950-01-331-1034