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 5950-01-487-4948
NSN 6150-01-024-5182
NSN 5975-00-147-4791
NSN 5895-00-891-4498
NSN 6130-00-705-7953
NSN 6610-00-927-7415
NSN 5999-01-616-8707
NSN 5985-01-535-6924
NSN 6105-01-478-2196
NSN 6650-01-051-7664
NSN 4140-01-537-6965
NSN 5930-01-321-7547