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 5945-00-821-3378
NSN 5895-01-431-6530
NSN 5855-01-604-0801
NSN 5985-00-285-8466
NSN 5996-00-737-0646
NSN 5855-01-359-5727
NSN 5905-01-274-6979
NSN 6145-00-011-2390
NSN 6240-01-287-1328
NSN 6135-01-338-2281
NSN 6320-00-701-0437
NSN 2925-01-208-3639