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 5910-01-151-1200
NSN 5999-01-114-7822
NSN 5895-01-272-2350
NSN 5960-01-073-8454
NSN 2925-00-906-0421
NSN 6685-01-025-3418
NSN 6685-01-519-9160
NSN 5930-01-227-5584
NSN 6645-01-148-3613
NSN 5990-00-574-5777
NSN 6620-01-549-6653
NSN 5935-00-136-9710