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 5950-00-269-4805
NSN 6105-00-064-7424
NSN 5920-01-142-1836
NSN 6135-01-265-1384
NSN 6610-01-225-2285
NSN 6685-01-138-7525
NSN 5965-01-414-4345
NSN 6650-01-442-6467
NSN 6650-01-161-1624
NSN 5985-01-328-0442
NSN 5835-01-215-5961
NSN 6150-01-486-0312