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 6220-00-269-9942
NSN 6220-01-527-5997
NSN 5945-00-764-9423
NSN 5855-00-189-6066
NSN 4140-01-431-4330
NSN 6650-01-633-9147
NSN 5855-00-055-1579
NSN 5835-00-378-1429
NSN 6220-00-948-7414
NSN 5930-00-240-7892
NSN 5895-01-324-1111
NSN 5996-01-198-2127