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 6150-01-500-1194
NSN 6220-00-553-8938
NSN 5975-01-068-0656
NSN 5835-00-647-2104
NSN 5999-01-246-4247
NSN 6135-01-010-0891
NSN 5960-01-421-8175
NSN 4140-00-421-9772
NSN 5925-01-557-4366
NSN 5925-01-152-2690
NSN 5915-01-370-3505
NSN 6135-01-326-0388