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 5985-01-595-2616
NSN 6610-00-596-9883
NSN 6620-01-538-2294
NSN 5855-01-391-7077
NSN 5925-01-589-3658
NSN 5920-01-141-6885
NSN 5960-00-269-4762
NSN 5965-01-222-1420
NSN 6145-01-204-7021
NSN 6620-01-239-0574
NSN 5960-01-381-2478
NSN 6320-00-164-4087