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 4140-01-290-8033
NSN 6610-01-285-8444
NSN 5990-00-050-7693
NSN 5975-01-314-6157
NSN 6145-01-428-9003
NSN 6145-01-302-8157
NSN 5905-01-583-6745
NSN 6110-00-498-6868
NSN 6135-01-397-6564
NSN 5930-01-257-6426
NSN 6610-01-465-1320
NSN 6620-01-106-2814