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 5990-01-395-4194
NSN 2925-00-690-8763
NSN 7035-00-946-2642
NSN 6150-01-364-8343
NSN 6320-00-937-5625
NSN 6320-01-386-3491
NSN 6610-01-469-6235
NSN 7035-00-117-0418
NSN 6110-00-630-5255
NSN 5950-01-510-2461
NSN 6320-01-651-5210
NSN 5990-01-423-8189