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 5975-00-111-3208
NSN 2925-01-100-3694
NSN 5960-00-900-0062
NSN 5935-01-461-3645
NSN 5905-01-533-2177
NSN 5975-01-094-5237
NSN 6150-01-442-3504
NSN 5895-01-262-2195
NSN 5915-01-259-5705
NSN 5998-01-420-6378
NSN 5910-01-157-9946
NSN 6620-00-428-9866