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 6130-01-456-2088
NSN 2925-00-480-9068
NSN 5985-00-518-5240
NSN 5910-01-027-2011
NSN 5855-01-364-1005
NSN 6240-00-863-6105
NSN 5855-00-149-0766
NSN 6135-00-351-8606
NSN 6620-01-471-8128
NSN 6135-01-643-3114
NSN 5985-01-533-9517
NSN 5855-01-564-6511