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 5960-01-022-6423
NSN 5960-01-522-0391
NSN 5990-01-326-2677
NSN 4140-01-400-3610
NSN 5910-01-131-5487
NSN 5950-00-507-3649
NSN 6685-01-480-7772
NSN 5990-01-106-3786
NSN 6105-00-351-6873
NSN 5985-00-397-7296
NSN 6130-00-993-0194
NSN 5996-00-411-7119