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 6150-01-398-0223
NSN 5998-01-625-2782
NSN 5945-00-226-6432
NSN 5915-01-433-9666
NSN 6650-01-463-2274
NSN 5990-01-465-9235
NSN 6240-01-343-3022
NSN 5920-00-243-9335
NSN 5895-01-128-3218
NSN 5998-01-317-5046
NSN 5835-01-259-0859
NSN 5930-01-542-8867