2 adjacent corners cut off 45 degrees and 1.968 in. From center
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 4140-01-194-2529
NSN 5930-01-515-0896
NSN 5895-01-534-7798
NSN 6610-00-837-3012
NSN 5920-01-116-6630
NSN 5999-00-468-5839
NSN 5855-01-437-3630
NSN 5990-01-503-6827
NSN 5996-01-318-3163
NSN 5960-01-424-1781
NSN 5925-01-270-2119
NSN 5855-01-444-9182