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 5915-01-364-1093
NSN 4140-00-727-3731
NSN 5945-00-786-8456
NSN 6320-01-309-9595
NSN 6150-01-631-0882
NSN 5935-00-127-0693
NSN 6145-01-167-1835
NSN 6110-01-483-1209
NSN 5930-01-527-2012
NSN 5975-01-322-1682
NSN 6130-01-375-0874
NSN 6610-00-937-0344