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 6645-00-189-7075
NSN 5985-01-416-4961
NSN 2925-00-149-0760
NSN 5950-01-285-8075
NSN 6130-00-081-9397
NSN 6130-00-655-3084
NSN 5985-00-633-5898
NSN 5910-01-129-9814
NSN 5915-01-083-6301
NSN 4140-01-432-7172
NSN 5920-00-150-1148
NSN 6150-01-091-3997