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 6610-01-216-9542
NSN 6145-01-370-4485
NSN 5835-00-275-0584
NSN 6320-01-148-8125
NSN 6650-01-573-0616
NSN 6650-00-910-2708
NSN 5945-00-547-8738
NSN 6650-00-202-4540
NSN 6135-01-120-9812
NSN 5996-00-964-9400
NSN 6320-01-493-4472
NSN 5975-01-634-0678