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 5910-01-512-8782
NSN 5925-01-621-2810
NSN 5935-00-060-1205
NSN 6105-01-032-8863
NSN 5998-01-392-4592
NSN 5935-01-147-5861
NSN 5925-00-452-1270
NSN 6105-01-087-4264
NSN 6650-01-348-5448
NSN 5930-01-120-9180
NSN 5920-00-860-0456
NSN 5905-00-464-7043