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 5915-01-344-0942
NSN 5990-01-159-5988
NSN 6320-01-160-3730
NSN 5960-01-360-3639
NSN 5945-01-649-3349
NSN 6645-00-608-7756
NSN 5835-00-491-3834
NSN 5950-00-759-6785
NSN 7035-01-485-7351
NSN 6105-01-468-4347
NSN 6645-00-893-0765
NSN 6105-01-132-7350