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 5945-00-125-5499
NSN 2925-01-422-1542
NSN 5835-01-384-3206
NSN 6110-00-112-1476
NSN 5960-00-778-3857
NSN 5965-00-263-6436
NSN 5905-01-589-1097
NSN 5920-01-240-7400
NSN 6610-00-398-0104
NSN 6150-00-784-4237
NSN 5930-01-055-6963
NSN 6620-00-927-6177