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 6145-01-552-9050
NSN 5835-00-196-9771
NSN 5998-00-501-9376
NSN 5905-01-450-5593
NSN 5835-01-527-2629
NSN 5965-01-396-7508
NSN 5950-00-833-6404
NSN 5960-01-381-8475
NSN 6145-00-990-6816
NSN 2925-00-156-8963
NSN 5975-00-149-0676
NSN 6145-01-293-5463