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 5985-01-270-2817
NSN 5990-00-636-4218
NSN 6150-01-310-0779
NSN 5855-00-089-3974
NSN 6320-01-347-2638
NSN 4140-01-531-6124
NSN 4140-01-550-8030
NSN 5950-00-574-3066
NSN 5930-01-083-0931
NSN 5895-00-790-6775
NSN 5960-00-371-6963
NSN 6645-01-487-4341