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 5835-01-213-0833
NSN 5990-01-250-4198
NSN 5910-00-154-0547
NSN 5998-01-052-4969
NSN 6220-01-474-5989
NSN 5905-00-203-2182
NSN 6150-00-244-2664
NSN 5910-01-045-2918
NSN 6650-01-014-3516
NSN 5975-01-368-7518
NSN 6240-01-633-6350
NSN 5910-01-576-8402