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 6105-01-411-5380
NSN 5855-01-483-2346
NSN 5835-01-373-3498
NSN 5998-01-041-0851
NSN 4140-01-634-0330
NSN 6685-01-459-3231
NSN 5935-01-217-2340
NSN 6105-01-069-6302
NSN 6145-01-117-9796
NSN 5925-00-269-2685
NSN 6320-00-593-0379
NSN 5855-01-138-4985