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 5905-00-003-2634
NSN 5999-01-263-7665
NSN 6220-01-239-5532
NSN 6220-01-411-5629
NSN 6610-00-200-8832
NSN 5895-01-460-1113
NSN 5915-00-139-2615
NSN 5895-00-880-1390
NSN 5998-00-684-8186
NSN 5855-00-896-4047
NSN 6110-01-559-8090
NSN 6240-01-069-4711