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 5895-01-607-7544
NSN 6685-00-189-8639
NSN 5915-00-113-4396
NSN 5855-01-444-3916
NSN 6110-00-294-3631
NSN 5930-00-067-6903
NSN 7035-01-550-8668
NSN 5965-01-348-8761
NSN 6610-01-435-5425
NSN 5910-01-232-3348
NSN 6110-01-228-5928
NSN 6150-01-634-0575