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 5985-01-026-2074
NSN 2925-01-004-5627
NSN 6150-01-392-6750
NSN 5996-00-110-9813
NSN 6105-01-117-6566
NSN 5965-01-218-5003
NSN 5999-01-449-1345
NSN 5855-01-236-9645
NSN 5895-01-141-2395
NSN 6620-01-385-6172
NSN 5915-01-565-8367
NSN 6220-01-461-2910