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 5920-01-365-0934
NSN 5910-01-413-7492
NSN 5920-01-039-8099
NSN 6240-01-316-0488
NSN 6650-00-539-7298
NSN 6135-01-127-0173
NSN 5855-01-175-3990
NSN 6620-01-431-9176
NSN 6645-01-323-1956
NSN 5895-01-060-8673
NSN 5998-01-126-8769
NSN 5965-01-347-7328