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 6220-00-269-4556
NSN 5950-00-100-5167
NSN 6110-01-551-0820
NSN 6320-00-701-0437
NSN 5990-01-317-9297
NSN 5985-00-012-5756
NSN 2925-01-161-5596
NSN 6130-00-227-2124
NSN 2925-00-408-9829
NSN 5996-01-220-4012
NSN 5835-01-362-0305
NSN 5935-00-257-7691