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 6145-01-072-3352
NSN 5905-01-499-6504
NSN 5835-01-055-6859
NSN 6650-01-496-1193
NSN 5985-01-082-9424
NSN 5950-00-577-4336
NSN 5960-01-381-2478
NSN 5996-01-387-4918
NSN 5910-01-408-2457
NSN 5855-00-832-9341
NSN 5965-01-249-2114
NSN 5996-01-447-7116