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 5910-01-465-0250
NSN 5999-00-759-3572
NSN 6105-00-631-5296
NSN 5998-01-024-2117
NSN 5835-00-007-6824
NSN 6220-00-138-5969
NSN 7035-00-631-3782
NSN 5915-01-633-9845
NSN 5925-00-097-7490
NSN 6320-01-050-1290
NSN 6135-01-426-8282
NSN 6150-00-258-8399