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 6645-01-394-0170
NSN 5945-01-474-6059
NSN 6130-01-600-3057
NSN 6135-00-196-5267
NSN 6130-00-218-1363
NSN 5999-00-493-9471
NSN 5965-01-408-9551
NSN 4140-01-321-3310
NSN 5945-01-607-5253
NSN 6610-01-555-0842
NSN 6240-00-104-4662
NSN 6685-01-364-8552