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 2925-00-347-7893
NSN 6650-00-930-8825
NSN 7035-00-225-6499
NSN 6650-01-316-6419
NSN 5920-01-182-7425
NSN 2925-01-360-3575
NSN 6130-01-329-0823
NSN 5905-00-042-7818
NSN 6150-01-174-6381
NSN 5915-00-291-3736
NSN 5910-00-813-9356
NSN 6110-01-632-2548