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 5925-01-437-5902
NSN 4140-01-144-9520
NSN 5930-01-021-9242
NSN 5835-01-121-9562
NSN 6105-00-189-0515
NSN 6110-01-581-0868
NSN 5915-01-441-2238
NSN 6135-01-493-2912
NSN 6610-00-117-7647
NSN 6150-00-460-5302
NSN 6320-01-476-7702
NSN 6620-01-541-4465