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 6110-01-281-6688
NSN 5920-01-470-4354
NSN 5915-01-425-8615
NSN 5855-00-361-0167
NSN 5965-00-226-0209
NSN 6620-01-344-9355
NSN 5999-01-158-2285
NSN 5895-01-149-3208
NSN 5855-01-068-3683
NSN 5855-00-055-1579
NSN 5998-01-297-2014
NSN 6110-00-795-3706