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 6610-00-213-8544
NSN 6610-00-081-2365
NSN 5925-01-147-5725
NSN 6645-01-526-0379
NSN 5945-00-125-5499
NSN 5915-00-243-5187
NSN 5998-01-008-0388
NSN 6220-00-999-8401
NSN 5915-01-417-0875
NSN 5855-00-403-1031
NSN 5920-01-418-1821
NSN 5905-00-960-7759