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 5975-01-582-4153
NSN 6220-01-029-0245
NSN 5990-01-124-9063
NSN 6650-01-632-3135
NSN 6135-01-566-1034
NSN 6105-01-560-5867
NSN 5920-01-200-0683
NSN 6610-00-148-8044
NSN 6645-01-421-4007
NSN 5895-01-083-3956
NSN 5905-00-296-2315
NSN 5855-01-203-4719