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 5999-01-106-1310
NSN 5990-01-411-4596
NSN 5915-00-247-8546
NSN 5895-01-444-2202
NSN 5945-00-869-9471
NSN 5935-01-421-1271
NSN 5920-00-928-6721
NSN 5920-01-379-7475
NSN 6650-00-181-1446
NSN 5998-01-345-6266
NSN 5905-01-400-3042
NSN 5945-01-041-2565