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 5930-00-711-3142
NSN 5935-00-730-4593
NSN 6130-01-230-5037
NSN 6685-01-484-9826
NSN 6650-01-650-5467
NSN 6620-01-533-1059
NSN 6220-01-537-9654
NSN 6685-01-186-4838
NSN 6130-00-150-7294
NSN 5985-01-642-3533
NSN 6105-01-319-8175
NSN 5998-00-466-3142