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 6110-01-552-2645
NSN 5998-01-029-4215
NSN 5930-01-437-7367
NSN 5990-00-902-7764
NSN 6645-01-258-9272
NSN 6130-01-431-3497
NSN 5985-01-468-4307
NSN 5935-01-149-4107
NSN 5855-00-221-9435
NSN 6110-00-479-0403
NSN 6320-01-366-5157
NSN 5915-01-124-5422