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 6145-01-367-9359
NSN 5915-00-007-3813
NSN 6150-00-925-7424
NSN 6645-01-167-0712
NSN 5975-00-839-6159
NSN 2925-00-070-4576
NSN 5920-01-034-0125
NSN 5855-01-383-8339
NSN 6620-00-905-6590
NSN 5855-01-278-8922
NSN 6110-00-271-9928
NSN 5935-01-288-8034