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 5895-01-201-0419
NSN 6610-01-522-5751
NSN 6110-00-469-7981
NSN 6610-01-510-2302
NSN 6240-01-512-1856
NSN 5915-01-265-0862
NSN 5935-00-717-3311
NSN 5835-01-416-6455
NSN 5895-01-158-5545
NSN 5915-00-740-4336
NSN 5905-01-445-7161
NSN 6150-01-364-8688