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 5835-01-055-6859
NSN 5895-01-411-1890
NSN 5910-01-365-2488
NSN 6220-00-135-0879
NSN 5950-01-261-7938
NSN 4140-01-052-0355
NSN 6240-00-735-7599
NSN 5999-00-346-5954
NSN 6150-01-542-9095
NSN 6645-00-664-4665
NSN 5985-01-020-8259
NSN 6645-01-657-9812