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 2925-00-167-6763
NSN 6645-01-223-2402
NSN 5930-00-459-6594
NSN 5950-01-108-4352
NSN 5935-01-184-9361
NSN 5930-00-130-9109
NSN 2925-01-359-4027
NSN 6220-01-084-5047
NSN 5920-00-366-0111
NSN 5985-01-323-7917
NSN 5835-01-022-6362
NSN 6105-01-462-0140