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 6610-01-552-7158
NSN 5985-00-781-0455
NSN 6145-00-089-6945
NSN 5905-01-155-3952
NSN 5925-01-388-2546
NSN 5990-01-538-6115
NSN 6145-01-391-8698
NSN 6130-01-232-0854
NSN 6320-01-100-7554
NSN 5935-01-111-4356
NSN 5945-00-079-0884
NSN 5950-01-492-5919