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 6130-00-905-5618
NSN 6610-00-264-0961
NSN 6620-00-232-2048
NSN 5930-00-367-9125
NSN 7035-01-116-6223
NSN 6220-01-338-8342
NSN 6610-01-400-3880
NSN 5905-01-078-7656
NSN 5965-01-323-7225
NSN 5998-00-161-0636
NSN 5996-01-110-7706
NSN 5905-00-963-1726