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 6135-01-451-2120
NSN 5975-01-031-1303
NSN 5905-01-533-4205
NSN 5965-01-352-7257
NSN 5960-01-506-7039
NSN 4140-01-595-9831
NSN 5920-01-542-6822
NSN 5910-01-007-6634
NSN 5895-01-161-9386
NSN 5895-00-455-0248
NSN 5975-01-288-3245
NSN 6130-00-296-4116