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 5950-00-916-5124
NSN 5950-01-346-0598
NSN 6105-01-648-2644
NSN 5985-00-119-5239
NSN 6645-01-084-5627
NSN 6645-01-526-5989
NSN 5925-01-177-4636
NSN 5985-00-132-2459
NSN 5915-01-579-4810
NSN 5985-01-211-5304
NSN 4140-01-317-3560
NSN 6130-00-985-3867