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 5930-01-485-2415
NSN 5985-01-247-6538
NSN 5998-01-503-1667
NSN 4140-01-418-0831
NSN 6220-01-317-4389
NSN 5895-00-796-9405
NSN 7035-01-539-6018
NSN 5975-01-363-9453
NSN 6240-00-156-1607
NSN 5930-01-583-7293
NSN 6620-01-376-3744
NSN 6135-01-481-5109