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 5915-01-499-5242
NSN 5990-01-059-0947
NSN 6620-01-509-5674
NSN 5855-01-152-5849
NSN 5998-01-377-0125
NSN 6135-01-540-9655
NSN 5960-01-409-1917
NSN 5990-01-322-9781
NSN 6645-01-450-5175
NSN 6620-01-317-7849
NSN 5960-01-584-9452
NSN 6650-00-419-4863