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 6130-01-426-8841
NSN 5920-00-023-2926
NSN 6240-00-501-7964
NSN 5935-01-152-4975
NSN 6145-01-427-9844
NSN 6105-01-446-5610
NSN 5975-01-029-0147
NSN 6240-01-540-2749
NSN 6320-01-392-6922
NSN 5975-01-265-0686
NSN 4140-01-109-9944
NSN 5925-01-144-5459