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 6645-01-135-5449
NSN 5835-00-941-4959
NSN 5925-00-858-7151
NSN 5965-01-193-0420
NSN 6645-01-166-1891
NSN 6105-01-437-6427
NSN 6650-01-457-0980
NSN 5965-01-359-8172
NSN 6685-01-310-8950
NSN 6685-01-462-6053
NSN 5985-00-779-5697
NSN 2925-00-968-9594