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 2925-00-876-1578
NSN 6685-01-227-5134
NSN 6685-01-317-9892
NSN 5920-00-891-2771
NSN 6130-01-603-2735
NSN 5855-01-258-5161
NSN 6685-01-471-2851
NSN 6610-01-040-8598
NSN 6150-01-509-1695
NSN 6105-01-203-6742
NSN 6685-00-551-0791
NSN 5905-01-355-2411