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 6135-00-708-0892
NSN 5998-00-632-0642
NSN 7035-01-075-7457
NSN 6240-00-517-7053
NSN 6220-00-961-5399
NSN 5910-01-230-7845
NSN 6645-01-657-2604
NSN 5835-01-109-4775
NSN 5835-00-104-2511
NSN 6620-00-053-2999
NSN 5965-01-415-2898
NSN 6130-01-437-9882