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 5905-00-250-2283
NSN 4140-00-262-9921
NSN 6220-00-624-0509
NSN 5855-01-565-8109
NSN 6130-00-188-7928
NSN 5945-00-360-6512
NSN 5895-01-170-6462
NSN 2925-01-591-4030
NSN 6110-01-264-2416
NSN 5905-00-683-8096
NSN 5950-01-394-4343
NSN 7035-01-038-3165