Marked megacycles
A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5960-01-469-7484
NSN 5960-01-537-8161
NSN 5965-00-004-6371
NSN 5895-01-598-4249
NSN 6145-01-034-8201
NSN 5910-00-155-4763
NSN 6145-00-880-1950
NSN 6145-00-588-0794
NSN 5895-00-481-0739
NSN 6110-00-736-9946
NSN 2925-01-472-4423
NSN 6220-01-423-2814