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 6110-00-549-6662
NSN 5950-00-173-9893
NSN 5930-01-583-6989
NSN 5920-01-351-5536
NSN 5920-01-358-5235
NSN 5925-00-452-1270
NSN 5920-00-180-0223
NSN 5990-01-443-2931
NSN 6685-00-196-5592
NSN 5855-00-237-4088
NSN 5895-01-589-1027
NSN 5950-01-116-3342