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 5996-00-557-8902
NSN 5895-00-269-9257
NSN 5925-01-129-1352
NSN 5915-01-403-2599
NSN 6135-01-210-8715
NSN 5998-01-051-2198
NSN 5965-00-689-1545
NSN 4140-00-193-8879
NSN 5855-01-499-8692
NSN 5910-00-660-7826
NSN 5950-00-030-0288
NSN 5950-01-152-9094