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 5895-00-707-2217
NSN 6650-01-150-8101
NSN 6150-01-126-3527
NSN 6110-01-559-6179
NSN 6220-01-234-0164
NSN 5996-00-522-6410
NSN 5895-01-215-2791
NSN 5985-01-616-3806
NSN 5985-01-238-3899
NSN 6150-00-200-6520
NSN 5930-01-623-7755
NSN 5910-01-127-3768