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 6110-01-131-4001
NSN 5996-01-359-3362
NSN 5996-00-919-3547
NSN 5960-01-564-5044
NSN 6645-01-069-3286
NSN 5905-01-513-9161
NSN 5835-00-257-2852
NSN 5895-01-558-5341
NSN 5855-01-089-2248
NSN 6220-01-458-7068
NSN 5910-00-434-9715
NSN 6320-00-115-0883