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 5999-00-999-0461
NSN 5835-01-416-6455
NSN 5990-00-483-6623
NSN 5855-01-068-3683
NSN 6105-01-014-9107
NSN 5895-01-528-0252
NSN 6240-01-362-8258
NSN 6145-01-577-6474
NSN 5996-00-011-5651
NSN 2925-00-441-8252
NSN 6145-00-466-4068
NSN 5985-01-097-5018