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 6110-00-305-1276
NSN 5895-00-239-2298
NSN 5935-00-258-5163
NSN 2925-00-642-8854
NSN 6150-01-602-8279
NSN 6620-00-556-1976
NSN 6685-01-454-6177
NSN 5985-01-489-1253
NSN 2925-01-180-9264
NSN 5965-00-421-9007
NSN 7035-01-163-3667
NSN 6620-01-481-1358