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 6220-01-415-2351
NSN 5910-01-348-7120
NSN 6240-00-860-7626
NSN 6150-01-450-9608
NSN 5910-01-167-4584
NSN 5915-00-553-8755
NSN 6610-01-472-2757
NSN 6685-01-582-7586
NSN 5835-01-592-2350
NSN 5905-01-315-6967
NSN 5915-01-142-2018
NSN 6220-01-165-3635