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 6110-00-688-7688
NSN 6145-01-432-1198
NSN 6610-01-245-8015
NSN 5985-01-309-9268
NSN 5960-00-615-9972
NSN 6110-01-161-9260
NSN 6685-01-258-3218
NSN 5998-00-607-9921
NSN 5999-01-300-6773
NSN 6320-00-036-3688
NSN 6105-01-291-9354
NSN 6105-01-313-9550