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 6105-01-132-5713
NSN 5999-00-398-1583
NSN 5910-01-245-7718
NSN 5998-00-012-3701
NSN 5930-01-372-2013
NSN 5855-01-027-1571
NSN 6145-01-481-8270
NSN 5925-01-522-8369
NSN 5945-01-269-8291
NSN 5910-01-133-1219
NSN 5960-01-257-0225
NSN 6685-00-846-1875