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 5935-01-501-0383
NSN 5999-01-157-0748
NSN 5920-00-088-4674
NSN 5855-01-147-6024
NSN 5895-01-070-0412
NSN 5985-00-309-6315
NSN 5990-01-261-2962
NSN 5996-00-404-7813
NSN 6145-00-635-9957
NSN 6220-01-427-2333
NSN 6220-01-263-2227
NSN 7035-01-407-6413