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 6320-01-386-3491
NSN 6220-01-448-5438
NSN 6135-01-184-0727
NSN 5910-00-844-0665
NSN 6645-01-123-9277
NSN 5905-00-472-7795
NSN 7035-01-339-3665
NSN 5910-01-533-0832
NSN 6130-00-107-3512
NSN 5910-00-121-1696
NSN 5905-00-261-3418
NSN 6645-01-064-3711