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 5925-00-254-0562
NSN 5945-00-844-4446
NSN 6240-00-089-0902
NSN 6320-01-072-2073
NSN 6620-01-519-2628
NSN 5835-01-171-0258
NSN 5855-00-114-4954
NSN 6220-01-420-6512
NSN 6150-01-136-1530
NSN 6135-00-951-3426
NSN 6135-00-927-5848
NSN 2925-01-330-2988