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 5960-01-515-4791
NSN 5985-00-126-4391
NSN 6240-01-553-1281
NSN 6685-00-598-1944
NSN 6650-01-130-6799
NSN 5935-01-123-6572
NSN 6150-01-608-9567
NSN 5985-01-467-4143
NSN 2925-01-196-6187
NSN 2925-01-027-1293
NSN 5990-01-245-7299
NSN 5998-01-323-9223