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 6130-00-233-7639
NSN 7035-00-064-7008
NSN 5960-01-259-3846
NSN 5930-01-133-1485
NSN 5895-01-288-2253
NSN 5985-01-101-1009
NSN 6320-01-039-5891
NSN 5855-01-334-6594
NSN 6645-01-573-2536
NSN 5920-00-169-4428
NSN 6610-00-197-2344
NSN 4140-00-499-7886