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 6650-00-626-1891
NSN 6320-00-573-8034
NSN 6320-01-046-5228
NSN 5975-00-384-8077
NSN 7035-01-441-9509
NSN 6105-00-061-2743
NSN 5999-00-075-0177
NSN 6220-01-592-2277
NSN 6135-01-527-5494
NSN 4140-00-854-2718
NSN 2925-00-608-0856
NSN 6220-00-643-4045