Heat treated
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 5835-01-623-3328
NSN 5999-01-634-0576
NSN 6220-01-065-2171
NSN 5950-01-427-3723
NSN 5855-01-233-2767
NSN 6610-01-261-6102
NSN 5985-00-153-5791
NSN 6645-01-329-2363
NSN 6220-01-548-6697
NSN 6220-00-920-8225
NSN 6620-00-834-9430
NSN 6150-01-176-6139