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 5999-00-781-7916
NSN 5920-00-189-7497
NSN 5945-01-411-9732
NSN 5945-01-425-0813
NSN 6610-01-149-9749
NSN 5920-01-285-5674
NSN 6645-01-030-0662
NSN 6110-00-284-1161
NSN 5998-01-310-4490
NSN 6240-01-052-2488
NSN 5950-00-355-6296
NSN 6685-01-384-8452