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 5950-01-141-7635
NSN 6145-00-311-8884
NSN 5950-01-431-6884
NSN 6135-00-548-2765
NSN 5930-00-627-2444
NSN 6145-01-231-7641
NSN 6145-01-581-8861
NSN 6145-01-018-6539
NSN 5999-01-080-7354
NSN 5855-01-406-7237
NSN 5960-00-411-3578
NSN 6220-00-501-1359