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 5925-00-884-8567
NSN 6135-00-643-4843
NSN 6145-00-767-8124
NSN 6105-01-340-8864
NSN 5935-00-174-2791
NSN 6135-01-443-7716
NSN 6145-00-027-0146
NSN 5920-00-384-8926
NSN 5999-01-436-2297
NSN 5960-01-599-9821
NSN 5985-01-513-9930
NSN 6645-00-911-2999