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 5925-01-631-7575
NSN 5925-01-288-8651
NSN 5930-00-435-8261
NSN 5910-01-162-0029
NSN 6105-01-545-0830
NSN 6110-01-044-6350
NSN 5895-01-309-2830
NSN 5999-01-440-5605
NSN 6150-01-381-2965
NSN 6650-00-088-4741
NSN 5920-01-101-5852
NSN 6610-00-960-9135