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 5990-00-197-0159
NSN 5996-00-229-1625
NSN 6150-00-587-7196
NSN 5930-01-561-5591
NSN 5895-00-218-1355
NSN 6110-00-549-6662
NSN 6150-01-509-1076
NSN 6220-01-429-0946
NSN 2925-01-194-2484
NSN 5965-01-284-3162
NSN 6110-00-717-5860
NSN 5960-01-380-0885