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 5835-00-939-7470
NSN 6320-00-004-9158
NSN 5998-00-378-4096
NSN 6130-01-455-4203
NSN 5975-01-417-6799
NSN 5990-00-930-4665
NSN 6620-01-431-9176
NSN 5996-01-466-1163
NSN 6150-01-359-1659
NSN 6130-00-541-8468
NSN 5950-01-481-8694
NSN 5990-01-546-1649