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 5855-01-167-2162
NSN 5960-01-469-7484
NSN 5960-00-025-7353
NSN 5930-01-238-0486
NSN 6150-01-073-2315
NSN 5990-01-067-1775
NSN 6145-01-513-9126
NSN 7035-01-153-1767
NSN 5920-00-269-6178
NSN 6645-01-496-0073
NSN 5998-01-200-6235
NSN 5895-00-626-9876