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 5910-00-786-8789
NSN 6105-00-008-6140
NSN 5935-00-934-2714
NSN 6220-01-189-1373
NSN 7035-01-033-3007
NSN 5996-01-034-6925
NSN 6150-01-474-4320
NSN 6135-01-022-5427
NSN 5895-01-432-3425
NSN 6240-00-496-8974
NSN 6320-01-512-2031
NSN 7035-00-938-8289