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 6240-01-165-2693
NSN 6145-01-463-8229
NSN 5930-00-009-6348
NSN 7035-01-211-5636
NSN 6620-00-896-8188
NSN 5975-00-013-9291
NSN 6135-00-613-1068
NSN 5999-01-378-7129
NSN 6150-01-064-6668
NSN 5930-01-157-9501
NSN 6105-01-445-5247
NSN 6130-01-551-1151