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 6110-01-131-6324
NSN 6240-01-476-7357
NSN 6220-01-449-1239
NSN 5925-01-634-0664
NSN 6135-01-014-9755
NSN 6110-00-294-3631
NSN 6150-00-006-8694
NSN 5855-01-443-8441
NSN 5999-00-539-2960
NSN 5835-01-116-2369
NSN 5999-01-140-2778
NSN 5945-00-151-4623