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 6130-01-088-7232
NSN 5960-01-163-8905
NSN 4140-00-016-2615
NSN 6610-01-609-7776
NSN 5920-00-840-8409
NSN 5945-00-103-5136
NSN 5996-01-245-6121
NSN 6105-00-147-8969
NSN 6240-01-017-7322
NSN 5945-01-467-9886
NSN 5910-00-246-3561
NSN 5855-00-925-0114