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 5915-01-351-4745
NSN 6135-01-313-4865
NSN 5950-01-260-1328
NSN 5975-00-917-9514
NSN 6105-01-255-2402
NSN 6135-01-390-7364
NSN 5985-01-276-2474
NSN 5990-01-577-2120
NSN 5895-00-623-0255
NSN 4140-01-495-1466
NSN 5990-01-009-3634
NSN 5855-00-688-9954