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 4140-01-172-4637
NSN 6620-01-166-4893
NSN 7035-01-246-3086
NSN 6145-01-363-8518
NSN 5960-01-443-3067
NSN 5985-00-678-6434
NSN 5945-00-395-2572
NSN 6685-00-091-0281
NSN 5930-01-564-7011
NSN 5925-01-385-1627
NSN 5925-01-575-9558
NSN 5835-01-652-4959