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 5975-01-045-1335
NSN 5990-01-522-6096
NSN 5905-01-268-1820
NSN 5905-01-121-9346
NSN 5915-01-203-4322
NSN 6105-00-243-0507
NSN 2925-00-225-5386
NSN 5990-00-396-8338
NSN 5925-01-187-0695
NSN 6110-00-129-8714
NSN 6650-01-425-2572
NSN 5965-01-582-4062