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 5855-00-494-9581
NSN 6240-01-554-0363
NSN 6110-01-057-9157
NSN 6145-01-166-0805
NSN 6105-01-526-5191
NSN 6150-00-826-8149
NSN 5965-00-465-9566
NSN 6110-00-080-8867
NSN 5950-01-459-1379
NSN 5960-00-533-1125
NSN 6220-01-651-9223
NSN 6220-00-577-3435