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 6620-00-290-6505
NSN 5930-01-354-8119
NSN 5996-01-279-8406
NSN 6645-01-395-2989
NSN 5999-01-515-5383
NSN 6105-01-652-3856
NSN 6650-01-452-1167
NSN 5925-01-114-8254
NSN 6220-01-383-6502
NSN 5835-01-023-8733
NSN 5998-00-106-1451
NSN 6135-01-599-7563