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 5960-00-183-8016
NSN 5930-01-301-4865
NSN 5895-01-173-3142
NSN 5998-01-358-7391
NSN 6610-01-346-2802
NSN 5985-00-249-1681
NSN 6110-01-611-5321
NSN 6150-01-364-8688
NSN 5965-01-351-6977
NSN 5985-00-264-2602
NSN 6135-01-440-9412
NSN 5855-01-441-3189