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 5930-01-170-4018
NSN 5910-00-452-5957
NSN 5920-01-474-5404
NSN 6135-00-248-4102
NSN 6110-01-539-4023
NSN 7035-00-981-7216
NSN 6610-01-114-7815
NSN 5925-00-023-9974
NSN 6130-01-160-8430
NSN 2925-01-148-2023
NSN 6105-01-119-9623
NSN 5945-01-537-6663