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 5910-01-553-4137
NSN 6610-00-937-3798
NSN 5895-01-376-7873
NSN 6135-00-125-5265
NSN 6220-01-207-1229
NSN 6610-00-435-1493
NSN 6135-01-106-0984
NSN 6610-01-202-7404
NSN 6685-00-339-8822
NSN 5999-00-785-9274
NSN 5965-01-459-8203
NSN 5895-01-321-1849