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 4140-01-545-7030
NSN 5985-01-475-3114
NSN 5935-00-472-0755
NSN 5935-01-174-1235
NSN 5999-01-354-0260
NSN 5915-01-131-2346
NSN 5965-00-934-3495
NSN 6135-00-851-8575
NSN 6130-01-195-1731
NSN 6610-01-180-5544
NSN 5855-01-246-8273
NSN 5999-01-567-8101