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 5990-01-200-7460
NSN 2925-00-672-5836
NSN 6105-01-577-1042
NSN 5920-00-224-4393
NSN 6610-00-468-1958
NSN 5930-01-346-8671
NSN 5895-01-015-4931
NSN 5999-01-579-9565
NSN 5965-01-431-4209
NSN 6685-01-115-3194
NSN 5965-00-139-4870
NSN 5855-00-198-3197