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 5930-01-558-4475
NSN 5999-00-306-2075
NSN 6645-01-086-1411
NSN 5960-01-259-3846
NSN 6220-01-092-4533
NSN 5920-01-091-1818
NSN 6130-01-564-2076
NSN 6150-01-354-3946
NSN 5910-01-426-8741
NSN 6105-01-163-6100
NSN 6130-00-755-1492
NSN 6645-01-430-2420