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 5950-01-460-1759
NSN 6130-01-549-8968
NSN 6110-01-472-6145
NSN 6240-00-405-5888
NSN 5975-01-531-4099
NSN 5960-00-361-8409
NSN 5975-01-271-0322
NSN 5999-00-389-6251
NSN 5905-00-467-8404
NSN 6645-01-123-7563
NSN 6145-01-248-1466
NSN 6105-00-800-5333