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 5998-00-703-0721
NSN 5855-01-006-1827
NSN 6610-01-431-8575
NSN 2925-01-372-9455
NSN 5960-00-565-0101
NSN 6145-00-621-0225
NSN 6135-01-199-1185
NSN 5910-01-438-6718
NSN 5998-01-027-0855
NSN 6240-00-635-9953
NSN 6610-01-365-1896
NSN 6145-00-802-2384