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 5998-00-363-7835
NSN 5999-01-140-8099
NSN 7035-01-450-2289
NSN 6320-00-004-9158
NSN 5910-00-248-2934
NSN 5950-01-178-8023
NSN 5905-01-352-4157
NSN 6610-00-527-8892
NSN 2925-00-625-7566
NSN 4140-01-252-2534
NSN 7035-01-062-0184
NSN 6220-01-463-8673