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 5965-01-573-7930
NSN 5910-01-633-9963
NSN 5895-01-632-5224
NSN 5999-01-246-2471
NSN 5985-01-108-8185
NSN 5965-01-144-3001
NSN 6110-01-250-4523
NSN 6135-00-763-5793
NSN 5935-01-277-6057
NSN 4140-01-089-7213
NSN 5855-01-400-1590
NSN 5975-01-318-1850