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 6105-00-938-2946
NSN 5910-01-023-1406
NSN 5855-01-409-1792
NSN 6150-00-132-1640
NSN 6645-00-754-4108
NSN 5960-00-118-1126
NSN 5960-01-257-0225
NSN 5965-01-048-4767
NSN 5855-00-688-9954
NSN 6685-00-398-9840
NSN 5935-00-161-3429
NSN 6320-01-281-6028