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 5998-00-907-5402
NSN 6650-01-183-0711
NSN 6610-01-048-7361
NSN 5945-01-127-7261
NSN 5895-00-518-1593
NSN 5835-01-359-2575
NSN 5990-01-529-6347
NSN 5965-00-894-0015
NSN 5998-01-115-2435
NSN 5998-00-280-7270
NSN 5950-01-065-3021
NSN 6130-01-204-4542