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 6685-01-503-5062
NSN 5930-01-279-0596
NSN 5895-01-139-7385
NSN 6110-01-047-1330
NSN 5996-01-251-3640
NSN 6240-01-154-4219
NSN 5965-01-414-4345
NSN 5925-00-597-1558
NSN 5998-00-799-3769
NSN 5945-01-495-0509
NSN 5925-00-458-6973
NSN 6110-01-192-1800