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 4140-01-258-2418
NSN 6130-01-026-8932
NSN 5855-00-451-6155
NSN 5925-00-531-9547
NSN 5950-01-278-8205
NSN 6105-00-456-9829
NSN 5960-00-824-0052
NSN 6650-01-025-7425
NSN 5895-00-803-0934
NSN 5975-01-170-4131
NSN 5905-01-137-1606
NSN 6150-01-300-8858