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 6150-00-922-1425
NSN 5965-01-007-9757
NSN 5945-01-542-7411
NSN 6610-01-450-0291
NSN 6320-00-174-1362
NSN 5985-01-115-6752
NSN 5960-01-567-1096
NSN 6145-01-324-2518
NSN 6240-01-251-1427
NSN 5855-01-149-4110
NSN 5895-01-379-5347
NSN 6220-01-266-8990