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 5950-01-154-2646
NSN 5965-01-467-1872
NSN 5895-01-100-1825
NSN 5998-00-155-8176
NSN 5910-01-432-0126
NSN 5925-00-243-1654
NSN 5855-01-145-4903
NSN 5895-00-503-2699
NSN 5905-00-592-4616
NSN 6650-01-223-3113
NSN 6110-01-574-6466
NSN 6150-01-005-6941