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 5935-01-166-8590
NSN 5915-01-057-9688
NSN 6150-01-220-8412
NSN 6105-00-908-2822
NSN 5920-00-021-1972
NSN 6135-00-603-4859
NSN 6240-00-299-9819
NSN 6645-00-833-2395
NSN 6145-01-096-3832
NSN 5930-00-252-4959
NSN 5960-01-040-7114
NSN 2925-01-139-6340