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 6135-00-347-0595
NSN 6110-01-320-2649
NSN 5895-01-024-8977
NSN 5960-00-021-5618
NSN 5935-00-196-1601
NSN 5945-01-014-5059
NSN 5925-01-114-5618
NSN 5910-00-707-4900
NSN 5835-01-515-6537
NSN 5998-01-366-0587
NSN 5945-01-167-8194
NSN 6620-00-542-1579