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 5915-00-925-2513
NSN 6130-00-618-0175
NSN 6645-00-369-4410
NSN 6240-00-102-4003
NSN 6220-01-620-0853
NSN 6130-01-395-9506
NSN 5999-01-346-0775
NSN 6620-01-219-9413
NSN 5925-01-449-7899
NSN 5990-01-065-0492
NSN 5999-00-558-7305
NSN 5998-01-226-4227