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 5990-01-188-7309
NSN 6320-01-207-8133
NSN 5905-01-154-7409
NSN 6145-01-530-2344
NSN 6620-00-944-5708
NSN 6320-01-056-1164
NSN 5935-01-485-2457
NSN 5915-00-780-7937
NSN 5905-01-438-0237
NSN 5910-01-192-0690
NSN 5990-01-004-6343
NSN 5915-00-774-8418