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 6610-01-446-7635
NSN 5996-00-160-1772
NSN 6645-01-340-4484
NSN 5930-01-407-0604
NSN 6150-01-087-3313
NSN 6240-00-041-5043
NSN 6130-01-265-1021
NSN 6135-01-100-3593
NSN 6135-00-050-0916
NSN 6150-01-553-6551
NSN 5920-01-385-8648
NSN 5835-01-614-1900