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 5975-01-312-8013
NSN 6220-00-081-6429
NSN 5920-01-046-5235
NSN 6130-01-038-2725
NSN 5985-01-456-0357
NSN 2925-00-782-1498
NSN 5960-00-857-8742
NSN 5950-01-394-5352
NSN 6110-00-577-8156
NSN 5975-00-493-3614
NSN 5915-00-851-0044
NSN 5996-01-147-6054