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 6130-00-188-7928
NSN 6650-01-450-0790
NSN 5910-00-061-6707
NSN 5996-00-473-5283
NSN 5930-01-585-7061
NSN 6610-00-870-1161
NSN 4140-00-246-4969
NSN 5960-01-442-9304
NSN 6650-01-626-2269
NSN 5915-01-523-3833
NSN 5915-01-573-9660
NSN 5895-01-400-2663