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 6645-01-154-3080
NSN 5905-00-151-6653
NSN 5999-00-044-6631
NSN 5975-01-500-1307
NSN 5999-01-294-4489
NSN 5998-01-510-2316
NSN 6105-01-569-6689
NSN 5950-00-324-7916
NSN 6220-01-080-2783
NSN 6105-01-215-4795
NSN 5950-00-683-8304
NSN 5935-01-528-0130