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 5910-01-032-3458
NSN 6610-00-369-6661
NSN 5990-00-753-8870
NSN 5990-01-050-7535
NSN 6610-00-623-5783
NSN 5975-01-492-4800
NSN 5990-00-164-1198
NSN 5930-01-370-3516
NSN 5965-00-959-4910
NSN 5835-00-233-6327
NSN 5855-01-557-1798
NSN 5915-00-084-5724