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 5950-01-120-7775
NSN 6650-01-184-9238
NSN 7035-00-055-9778
NSN 5935-01-352-5858
NSN 5930-01-113-3890
NSN 6110-01-025-6139
NSN 6150-01-309-0696
NSN 5960-00-788-0401
NSN 5935-01-430-8768
NSN 5855-01-141-5190
NSN 5998-00-420-1448
NSN 6145-01-271-7339