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 5950-01-392-1026
NSN 5915-00-100-5239
NSN 5920-00-841-2337
NSN 6110-00-618-4171
NSN 6145-00-763-4430
NSN 5999-01-363-0282
NSN 5975-00-449-1209
NSN 5910-00-138-9746
NSN 5950-01-611-0849
NSN 5998-01-526-5221
NSN 6650-00-684-3060
NSN 5905-01-408-5991