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 6240-01-151-7613
NSN 6240-01-442-0435
NSN 5835-00-057-7235
NSN 5920-01-310-8120
NSN 5960-01-399-4327
NSN 6110-01-167-2965
NSN 5935-00-988-6267
NSN 5996-00-874-9163
NSN 6650-01-164-0191
NSN 5895-00-958-0424
NSN 5925-00-736-0425
NSN 6610-00-825-5774