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 5945-00-097-1046
NSN 5975-01-254-1684
NSN 6130-01-072-8384
NSN 5895-01-011-5345
NSN 6220-01-286-2292
NSN 5930-01-418-2433
NSN 5985-01-321-5084
NSN 5960-01-413-3877
NSN 6110-01-424-2471
NSN 5960-01-349-8791
NSN 5945-01-653-9034
NSN 6650-00-152-6538