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 5920-00-593-6496
NSN 5835-00-827-1904
NSN 6320-01-170-4068
NSN 6105-01-492-8375
NSN 5915-01-548-2580
NSN 5915-01-369-9746
NSN 6135-01-548-1423
NSN 6645-01-032-5266
NSN 5960-00-770-3701
NSN 6135-01-329-7994
NSN 5930-00-066-7136
NSN 5960-01-212-4227