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 5965-01-197-6924
NSN 4140-01-156-0445
NSN 6110-01-151-5891
NSN 5975-00-529-3835
NSN 5999-01-371-2185
NSN 5835-01-593-7579
NSN 5985-00-845-9782
NSN 6650-00-105-5744
NSN 5975-01-110-3600
NSN 6135-00-221-4720
NSN 5855-01-580-0645
NSN 6610-00-427-9217