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 6645-01-395-9223
NSN 5999-00-981-7382
NSN 5996-01-561-4885
NSN 6320-01-576-6310
NSN 6110-01-307-4104
NSN 5920-01-143-0433
NSN 5895-01-194-8886
NSN 5965-00-013-1278
NSN 5855-01-513-9601
NSN 5920-01-208-6416
NSN 5895-00-580-0842
NSN 5930-01-393-2413