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 6130-00-097-1240
NSN 5990-01-400-3299
NSN 6110-01-628-3529
NSN 5905-00-707-4189
NSN 5990-00-994-0555
NSN 5998-00-275-0833
NSN 6150-01-351-1152
NSN 5920-01-291-5956
NSN 5925-01-370-5793
NSN 5998-01-634-0604
NSN 5998-01-442-7841
NSN 5950-00-271-1611