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 6105-01-150-6751
NSN 6220-00-028-3964
NSN 2925-00-233-5644
NSN 6130-00-113-9768
NSN 5930-01-573-7265
NSN 5996-01-396-4767
NSN 6220-01-612-2461
NSN 5915-00-144-5548
NSN 5855-01-634-0259
NSN 5835-01-290-5925
NSN 4140-00-146-1633
NSN 5920-01-119-9216