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 6645-00-244-0359
NSN 6620-00-877-3266
NSN 5935-00-237-5124
NSN 5990-01-414-7618
NSN 5910-01-160-8706
NSN 6320-00-593-0379
NSN 6145-01-401-3713
NSN 5998-01-135-8492
NSN 5930-00-579-9470
NSN 6685-01-598-6870
NSN 5945-00-691-5733
NSN 6135-00-935-5241