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 5835-00-155-1379
NSN 6150-01-037-2670
NSN 5998-01-265-0348
NSN 4140-01-253-7648
NSN 6620-01-656-7448
NSN 5999-00-918-2323
NSN 6240-01-360-0225
NSN 6320-01-578-6006
NSN 5925-00-919-3054
NSN 5985-01-168-8546
NSN 5999-00-878-8995
NSN 6135-00-209-6918