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 5999-01-568-3578
NSN 6110-01-191-0127
NSN 2925-01-510-9378
NSN 5855-01-463-1315
NSN 5945-00-918-2596
NSN 6610-01-210-4306
NSN 6610-01-176-3539
NSN 5999-01-444-3944
NSN 6650-01-431-9625
NSN 5975-01-551-1720
NSN 5855-00-138-2386
NSN 5930-00-862-7468