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 5960-01-356-4429
NSN 6620-01-098-9866
NSN 6650-00-500-6455
NSN 5935-01-556-5224
NSN 5855-00-361-0167
NSN 6145-01-226-3691
NSN 6610-01-654-4685
NSN 6620-01-042-2046
NSN 6130-01-317-3689
NSN 5910-00-509-9973
NSN 5985-01-071-0510
NSN 5975-00-837-3293