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 6130-01-170-3721
NSN 5990-00-201-1162
NSN 5925-00-216-8767
NSN 5998-00-493-5159
NSN 6105-01-411-7377
NSN 5855-01-328-7434
NSN 7035-01-323-0164
NSN 5999-01-317-3819
NSN 6650-01-267-7739
NSN 6685-01-152-2768
NSN 5925-01-191-4285
NSN 6685-00-801-7587