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 6620-01-446-6977
NSN 6105-01-078-1783
NSN 6150-00-225-2279
NSN 2925-01-004-5627
NSN 5925-01-033-9086
NSN 5835-01-535-8470
NSN 5950-01-360-5614
NSN 6645-01-538-3730
NSN 6135-01-502-5787
NSN 6620-00-446-8048
NSN 6135-00-539-8088
NSN 5935-01-207-0033