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 6145-01-447-2361
NSN 5930-01-026-0427
NSN 5835-01-647-6426
NSN 6240-01-187-6536
NSN 5910-00-652-2454
NSN 7035-01-425-8063
NSN 6105-01-243-6433
NSN 5965-01-318-8138
NSN 5930-00-784-0323
NSN 6130-01-395-9506
NSN 2925-00-860-3652
NSN 6110-01-312-8629