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 2925-01-459-8093
NSN 6105-01-026-9114
NSN 5950-00-896-0239
NSN 5905-01-135-1120
NSN 5945-00-515-2667
NSN 4140-01-483-6234
NSN 5985-01-212-9767
NSN 5835-00-411-0591
NSN 2925-00-660-8131
NSN 5985-01-448-3247
NSN 6240-01-359-4288
NSN 4140-01-625-0441