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 6220-00-244-2552
NSN 5910-01-023-1406
NSN 5965-01-389-0004
NSN 5996-00-148-2772
NSN 4140-01-230-1082
NSN 6135-00-628-1142
NSN 6130-01-416-8430
NSN 6650-01-209-2409
NSN 6105-01-182-9604
NSN 5945-01-187-5751
NSN 6320-01-573-3215
NSN 5998-00-906-4696