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 5935-01-206-4665
NSN 5835-01-432-6185
NSN 5935-01-463-1174
NSN 6135-01-111-1495
NSN 6240-01-474-5446
NSN 5999-01-440-8638
NSN 5960-00-975-0560
NSN 5960-01-416-0474
NSN 5999-00-468-6041
NSN 5930-01-656-6818
NSN 6620-00-885-0716
NSN 6645-01-285-4284