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 6620-00-959-6614
NSN 5975-00-199-4956
NSN 6135-01-222-0703
NSN 5996-00-806-9287
NSN 2925-01-351-9748
NSN 5960-00-215-5884
NSN 6685-01-509-0919
NSN 5930-00-722-2477
NSN 5915-00-156-2083
NSN 6685-01-386-9239
NSN 6105-00-466-8622
NSN 7035-00-585-2113