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 5905-01-206-4998
NSN 6105-00-153-0238
NSN 5930-01-503-4660
NSN 5905-00-990-5048
NSN 4140-00-121-6746
NSN 6135-01-566-1034
NSN 6610-01-351-4607
NSN 5835-01-408-7576
NSN 5920-01-067-2944
NSN 6105-01-642-2709
NSN 6110-01-435-1714
NSN 5965-01-045-0247