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 5905-01-124-0502
NSN 5935-00-683-7894
NSN 6135-01-487-5336
NSN 6650-01-431-9625
NSN 5925-00-160-4747
NSN 2925-00-724-9252
NSN 6620-01-616-6008
NSN 5990-00-524-2293
NSN 5960-01-357-1261
NSN 5998-00-997-7937
NSN 6685-01-435-4072
NSN 5930-01-008-6631