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 6110-00-938-3723
NSN 5990-00-067-6791
NSN 6620-01-628-2620
NSN 5835-01-576-9013
NSN 5915-00-203-2380
NSN 5999-01-288-7409
NSN 5915-01-550-6724
NSN 5965-00-215-5866
NSN 6130-00-628-4061
NSN 6610-00-862-1567
NSN 6610-01-096-8746
NSN 6610-01-230-9971