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 6645-01-210-2223
NSN 6620-01-648-1594
NSN 5990-01-057-4191
NSN 6135-01-423-7502
NSN 6135-01-238-2878
NSN 5996-01-503-3410
NSN 6130-01-411-6089
NSN 6320-01-421-3777
NSN 5920-01-318-3025
NSN 5910-01-062-0518
NSN 5965-00-849-1313
NSN 6105-01-113-7039