Od of glass to be coated with a platinum alloy and tinned to permit a glass to metal seal with soft solder
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 5990-01-319-5667
NSN 5930-00-935-3422
NSN 5915-01-364-1208
NSN 5999-01-028-2172
NSN 5998-00-318-5739
NSN 5855-01-385-8846
NSN 5960-01-409-1917
NSN 5965-00-879-7287
NSN 5930-01-309-0044
NSN 5835-01-250-2939
NSN 6150-01-375-5434
NSN 5920-01-146-6690