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 5999-01-634-0576
NSN 5950-01-312-1860
NSN 5975-01-461-7852
NSN 6150-01-484-5353
NSN 5930-00-833-8458
NSN 5996-00-754-2840
NSN 5910-01-217-6000
NSN 5895-01-131-4222
NSN 6240-01-399-3009
NSN 5925-00-269-2685
NSN 5835-00-863-3980
NSN 5895-01-160-6599