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 5905-00-862-5020
NSN 2925-00-749-8893
NSN 5915-01-530-2783
NSN 6110-01-364-8344
NSN 5945-00-220-6789
NSN 6135-01-570-4284
NSN 6145-00-264-2137
NSN 6135-00-862-5736
NSN 5910-00-288-5979
NSN 5996-01-281-7336
NSN 5935-00-433-6039
NSN 5975-00-173-1810