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 6220-01-104-5604
NSN 6145-01-547-4859
NSN 5999-01-499-1369
NSN 5999-00-810-0176
NSN 6145-00-590-8642
NSN 6150-00-740-8011
NSN 6130-01-360-9695
NSN 6135-00-461-3590
NSN 5855-00-221-9435
NSN 6610-01-576-8955
NSN 5930-01-060-0429
NSN 5935-01-364-0161