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 6620-01-571-7727
NSN 6240-00-263-0549
NSN 6610-00-822-0431
NSN 5935-01-449-1341
NSN 6150-00-415-4808
NSN 6685-01-614-4116
NSN 2925-01-167-6500
NSN 5999-01-189-7273
NSN 5945-01-406-3497
NSN 2925-01-204-6243
NSN 6685-01-634-0611
NSN 5990-00-983-7530