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 5835-01-235-5061
NSN 5835-01-321-7895
NSN 5945-00-899-3095
NSN 6110-01-600-1819
NSN 6240-00-435-0433
NSN 5950-01-377-7186
NSN 6135-01-660-2840
NSN 5935-00-806-1956
NSN 5999-00-767-7924
NSN 5855-01-195-2518
NSN 6110-01-285-8817
NSN 6150-00-729-9420