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 4140-00-862-5644
NSN 6610-01-225-3941
NSN 6105-01-322-6418
NSN 5895-00-951-6944
NSN 5855-01-566-7431
NSN 5960-01-179-4009
NSN 5910-01-361-4674
NSN 6135-01-341-9814
NSN 5998-00-186-0946
NSN 5935-01-467-4279
NSN 6645-00-258-8547
NSN 5996-01-261-4262