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 5960-00-254-4271
NSN 5998-00-166-7622
NSN 5960-00-045-9266
NSN 5915-01-350-4485
NSN 5895-01-180-3159
NSN 6650-01-246-4262
NSN 5930-00-318-9133
NSN 6650-00-349-8732
NSN 5855-00-869-3635
NSN 6650-00-005-6649
NSN 5975-00-156-0416
NSN 5990-01-066-5227