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 5950-01-458-9519
NSN 6145-01-016-0759
NSN 6650-00-116-7439
NSN 5975-00-740-8367
NSN 5920-00-138-1799
NSN 5990-01-305-8121
NSN 5925-01-272-4330
NSN 5999-01-634-0576
NSN 6150-00-449-7862
NSN 5960-01-278-9394
NSN 5999-01-092-6967
NSN 5895-01-106-3532