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 6150-01-477-5567
NSN 6105-00-850-8424
NSN 5996-01-005-1440
NSN 5998-01-463-3487
NSN 6620-00-248-6950
NSN 5920-01-160-6050
NSN 6130-00-786-1775
NSN 6650-01-422-1037
NSN 5999-00-151-4062
NSN 5960-01-117-8671
NSN 6610-01-512-2025
NSN 6130-01-605-5579