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 6110-01-422-1418
NSN 4140-01-579-3421
NSN 6645-01-132-1862
NSN 6610-01-590-7222
NSN 5855-01-365-4287
NSN 5920-01-413-3887
NSN 5985-01-033-5054
NSN 4140-00-862-5644
NSN 4140-00-277-6285
NSN 5895-00-143-2818
NSN 5905-01-634-0595
NSN 6610-01-305-0954