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 6650-01-541-4357
NSN 5945-00-236-2735
NSN 6150-01-083-9075
NSN 5945-01-197-2923
NSN 5945-00-413-7729
NSN 6105-01-092-2362
NSN 6240-01-164-5019
NSN 5950-01-661-1224
NSN 5996-01-564-5554
NSN 6110-01-486-0848
NSN 5999-00-471-6061
NSN 6645-01-364-0867