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 6105-01-108-4087
NSN 7035-01-406-6510
NSN 5855-01-147-6024
NSN 4140-01-417-4369
NSN 5990-01-154-7296
NSN 6685-00-738-9567
NSN 5998-01-462-0636
NSN 5950-01-432-2038
NSN 5920-01-297-0800
NSN 4140-00-164-6832
NSN 5895-01-546-9456
NSN 5950-01-181-3079