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 5996-01-656-6263
NSN 5935-01-233-7150
NSN 6650-01-004-1625
NSN 5895-00-187-5280
NSN 6220-01-122-3155
NSN 5998-01-593-6516
NSN 5996-01-409-1020
NSN 5910-01-614-6155
NSN 6150-00-097-7121
NSN 5910-01-246-2763
NSN 6130-00-224-6951
NSN 7035-01-287-9817