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 6110-00-301-4874
NSN 5945-00-513-9716
NSN 6645-01-320-4138
NSN 5965-00-501-7835
NSN 6105-00-768-5369
NSN 5985-01-490-7751
NSN 6130-01-478-7890
NSN 6135-00-982-1882
NSN 5930-01-310-3055
NSN 6135-01-561-5945
NSN 5915-00-206-0086
NSN 5999-00-484-8087