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 5985-01-223-4928
NSN 4140-01-087-3336
NSN 6105-01-180-0258
NSN 6110-00-191-9225
NSN 5895-00-116-7411
NSN 5915-00-518-1644
NSN 5990-00-104-4903
NSN 5945-00-276-9274
NSN 5855-00-185-1560
NSN 5925-00-077-9618
NSN 5965-01-628-5391
NSN 6145-01-339-4208