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 6105-01-492-5723
NSN 4140-01-286-0536
NSN 6320-01-202-8761
NSN 6135-01-412-8929
NSN 6620-01-352-5640
NSN 6130-01-252-8823
NSN 5945-00-828-0337
NSN 5935-00-977-2648
NSN 6150-01-595-9671
NSN 2925-00-246-3077
NSN 5925-00-274-3195
NSN 5895-01-607-5860