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 6105-01-640-9162
NSN 5855-01-656-6808
NSN 6610-01-656-4093
NSN 6110-01-245-7640
NSN 6135-01-408-0313
NSN 5895-01-082-1805
NSN 6620-01-352-5640
NSN 5960-01-573-6483
NSN 4140-01-077-7555
NSN 5985-00-607-3211
NSN 5990-01-606-9305
NSN 5895-01-411-6024