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 5935-00-686-3081
NSN 6145-01-464-3380
NSN 6650-01-265-0650
NSN 4140-01-562-7868
NSN 6145-01-246-3988
NSN 6610-01-582-1876
NSN 6620-01-613-7996
NSN 5975-01-407-7152
NSN 6145-01-548-5812
NSN 5990-00-254-4825
NSN 5915-00-425-6175
NSN 6105-01-383-7486