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 6610-01-440-9913
NSN 5990-01-425-2175
NSN 5999-01-348-8871
NSN 6610-01-633-8931
NSN 6220-01-580-1030
NSN 5996-00-525-1777
NSN 5915-01-388-2911
NSN 5950-00-456-0665
NSN 4140-00-287-9199
NSN 6650-01-449-8637
NSN 6110-01-406-4492
NSN 6130-01-363-6848