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 6650-01-406-5322
NSN 5925-00-467-6213
NSN 6130-00-826-5590
NSN 5945-00-823-8652
NSN 5935-00-706-2827
NSN 5985-01-545-2549
NSN 6135-01-633-8502
NSN 6130-01-264-5190
NSN 5920-01-507-7159
NSN 5960-01-657-5958
NSN 5905-01-559-2011
NSN 6620-01-617-3915