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 5925-01-276-0456
NSN 6130-01-350-6478
NSN 6620-00-943-0449
NSN 6110-01-327-3282
NSN 5985-00-089-0531
NSN 5925-00-262-5651
NSN 5935-00-269-5516
NSN 6105-01-463-8557
NSN 5965-01-065-5544
NSN 6110-01-451-4326
NSN 6130-01-218-4710
NSN 5990-01-032-3832