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 5915-01-388-2183
NSN 5975-00-625-6347
NSN 5920-00-456-5211
NSN 5910-00-484-3130
NSN 5999-01-072-5609
NSN 5920-00-928-2229
NSN 7035-01-092-8962
NSN 5835-00-707-6266
NSN 5999-01-025-1266
NSN 5855-00-427-7848
NSN 5960-00-884-2535
NSN 2925-01-620-9673