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 5895-00-481-6138
NSN 5905-00-154-7022
NSN 2925-01-614-0476
NSN 7035-01-513-3025
NSN 5910-00-472-3662
NSN 4140-01-545-1853
NSN 5910-00-326-2022
NSN 6320-01-162-5977
NSN 5855-01-592-3128
NSN 5990-01-286-0601
NSN 5990-00-964-6422
NSN 5910-01-367-2230