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 6150-01-550-8293
NSN 5996-01-309-3085
NSN 6220-01-236-0233
NSN 5905-00-166-9971
NSN 5835-01-286-6499
NSN 6240-00-658-3207
NSN 5950-01-285-5144
NSN 5990-01-630-5094
NSN 5835-00-264-0946
NSN 5855-01-519-0343
NSN 6105-00-632-6564
NSN 5930-01-634-0659