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 6105-00-127-2993
NSN 6220-01-173-3177
NSN 6135-00-062-5080
NSN 5930-00-081-0362
NSN 5855-01-432-2487
NSN 5985-01-318-3887
NSN 6135-01-523-3198
NSN 6220-01-418-2549
NSN 6320-01-137-4714
NSN 5999-00-982-1037
NSN 5965-01-018-2792
NSN 6610-01-503-8914