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 6645-01-495-0939
NSN 5895-01-634-0630
NSN 5920-01-590-0493
NSN 6135-00-840-6451
NSN 7035-01-406-6510
NSN 5920-00-296-9869
NSN 6135-01-552-1568
NSN 5920-00-980-0121
NSN 6320-01-056-1164
NSN 6145-00-493-4073
NSN 5895-00-118-3152
NSN 5905-01-577-8414