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 2925-01-019-6145
NSN 5920-00-515-3617
NSN 5930-01-449-3062
NSN 5935-00-052-4249
NSN 5985-01-064-6892
NSN 5910-01-534-0896
NSN 4140-01-268-3273
NSN 7035-01-088-5575
NSN 5998-01-041-7854
NSN 2925-01-364-7926
NSN 6610-00-186-9180
NSN 5930-01-437-7367