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 5985-00-179-8956
NSN 6650-01-435-1168
NSN 6320-01-227-2648
NSN 5975-01-634-0678
NSN 2925-01-604-8984
NSN 5950-00-085-1829
NSN 5999-01-329-4425
NSN 6645-00-296-8310
NSN 6620-00-100-4517
NSN 6240-01-160-7934
NSN 6220-00-146-3226
NSN 2925-01-596-9448