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 6620-01-440-9810
NSN 6320-01-039-5891
NSN 2925-00-365-3289
NSN 5855-01-433-7009
NSN 5930-01-605-0162
NSN 5920-01-634-0250
NSN 5990-01-083-2430
NSN 5990-00-078-3182
NSN 5895-00-097-1267
NSN 2925-00-203-8735
NSN 5915-00-892-3011
NSN 5960-00-460-0072