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 5930-00-563-3887
NSN 2925-01-255-6394
NSN 5895-01-152-2895
NSN 6145-01-056-5515
NSN 5930-00-441-5220
NSN 5855-01-540-4797
NSN 5990-01-548-3711
NSN 5950-01-563-1556
NSN 6130-00-211-7355
NSN 5835-00-498-8189
NSN 5935-01-433-4719
NSN 6135-01-438-0228