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 5930-01-607-7256
NSN 5950-01-099-0041
NSN 6150-00-326-6803
NSN 6150-01-211-0946
NSN 5990-01-641-2217
NSN 6240-01-007-5214
NSN 5915-01-599-8846
NSN 5910-01-500-1073
NSN 6135-00-027-3914
NSN 2925-01-231-6312
NSN 6150-01-045-4620
NSN 5915-00-879-4375