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 6645-01-330-6028
NSN 6105-01-046-4771
NSN 5920-00-163-4185
NSN 5950-00-859-2390
NSN 5999-00-453-5346
NSN 6130-01-318-0725
NSN 5915-01-165-7409
NSN 6135-00-519-1325
NSN 6610-01-440-4314
NSN 6110-01-440-3296
NSN 6220-00-872-3032
NSN 5910-01-185-5247