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 5960-01-262-1399
NSN 6685-01-401-5360
NSN 5999-01-308-6720
NSN 6150-01-322-0133
NSN 5990-01-390-2177
NSN 6110-01-221-3124
NSN 6650-01-319-8204
NSN 5935-00-947-9363
NSN 6620-01-552-2889
NSN 5910-01-177-6210
NSN 6320-01-355-2367
NSN 5910-01-318-8054