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 2925-00-265-7539
NSN 5990-00-074-3056
NSN 6240-01-068-3491
NSN 6105-00-153-7967
NSN 6135-00-161-0746
NSN 5975-01-514-2025
NSN 6150-01-350-9943
NSN 5990-01-208-4322
NSN 6145-01-383-0634
NSN 5996-01-365-5630
NSN 6135-00-294-0950
NSN 5905-00-523-8458