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 5835-00-123-5175
NSN 6145-01-104-5084
NSN 5998-00-021-8987
NSN 5925-01-352-3349
NSN 5960-00-518-3091
NSN 5905-00-910-0143
NSN 6620-00-065-9983
NSN 6320-00-831-2227
NSN 5999-00-716-1100
NSN 5905-01-061-5820
NSN 5975-00-209-6498
NSN 6130-01-018-8756