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 5855-00-145-3307
NSN 6150-01-079-2129
NSN 6105-01-468-5605
NSN 5985-00-655-7589
NSN 5975-00-226-8429
NSN 5835-01-602-0311
NSN 6220-01-370-6148
NSN 5895-01-400-4153
NSN 4140-00-892-5952
NSN 6610-01-356-3435
NSN 5935-00-036-6047
NSN 6610-01-071-4097