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 6220-01-512-0144
NSN 5855-00-688-9954
NSN 5935-00-187-7102
NSN 6105-01-447-5129
NSN 6320-00-004-9158
NSN 5990-00-333-6210
NSN 6620-01-350-5103
NSN 5855-01-213-9076
NSN 6105-01-420-2747
NSN 5855-01-525-8017
NSN 6130-01-478-8987
NSN 6610-00-709-7260