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 5930-01-246-8098
NSN 6320-01-067-0474
NSN 5998-01-022-5836
NSN 6220-01-337-4722
NSN 5990-00-164-1198
NSN 5950-00-927-2984
NSN 5999-00-201-8118
NSN 5935-01-259-9789
NSN 5996-00-818-3738
NSN 5935-01-501-4912
NSN 5915-00-402-8186
NSN 6110-01-066-8038