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 2925-01-457-5649
NSN 6650-01-443-3668
NSN 5975-00-067-9720
NSN 6150-00-340-2321
NSN 5930-01-317-6024
NSN 5975-01-019-7265
NSN 6610-01-659-3277
NSN 5975-00-099-9312
NSN 5990-00-446-0518
NSN 6610-01-484-8980
NSN 6135-01-423-7502
NSN 5960-01-268-4356