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 6610-00-008-4075
NSN 7035-01-642-2153
NSN 6135-01-493-8375
NSN 5975-01-372-1367
NSN 5998-01-534-9984
NSN 6130-01-361-7676
NSN 6645-00-876-4413
NSN 5835-01-439-0180
NSN 2925-01-083-3986
NSN 6320-01-495-0512
NSN 5975-01-237-5769
NSN 5975-01-448-8368