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 5920-01-229-7152
NSN 5985-01-252-6167
NSN 6220-00-080-8472
NSN 6610-01-471-5599
NSN 5915-00-739-5269
NSN 5960-00-504-6757
NSN 6135-00-484-8556
NSN 2925-00-993-7715
NSN 6620-00-155-2608
NSN 5999-01-047-0773
NSN 6685-01-316-6984
NSN 5935-01-468-0549