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 5855-01-344-8688
NSN 5990-00-974-1918
NSN 5996-01-381-6564
NSN 5996-00-955-3328
NSN 6135-01-322-4655
NSN 7035-01-632-3449
NSN 5945-01-578-8413
NSN 5950-01-649-2376
NSN 5960-01-245-6088
NSN 2925-01-374-2402
NSN 5835-01-216-7289
NSN 4140-01-349-9071