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 6150-01-610-1657
NSN 6685-00-269-6444
NSN 6150-01-610-5636
NSN 5996-01-129-4873
NSN 5999-01-491-7878
NSN 6610-00-589-2689
NSN 5950-01-651-9073
NSN 5895-00-423-2239
NSN 5915-01-147-4830
NSN 5920-01-541-5030
NSN 5895-01-023-0522
NSN 5965-01-431-8147