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 5930-01-604-9646
NSN 5925-01-321-8829
NSN 5905-01-390-7754
NSN 5990-00-116-6590
NSN 5975-01-146-2852
NSN 7035-01-633-7013
NSN 5915-01-160-5179
NSN 5935-00-983-0689
NSN 5965-00-888-2643
NSN 6150-01-201-9128
NSN 5910-01-176-0408
NSN 6650-01-006-3487