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 5905-00-847-2668
NSN 5960-01-599-9821
NSN 6105-01-355-4558
NSN 5998-00-702-2954
NSN 5935-01-144-9590
NSN 6145-01-099-0448
NSN 6105-01-455-8743
NSN 5998-00-335-9051
NSN 5950-01-451-4538
NSN 5975-01-604-9721
NSN 5985-01-144-7358
NSN 5910-01-179-5286