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 4140-00-886-1710
NSN 6240-00-658-3207
NSN 5920-00-782-6903
NSN 6220-01-362-4156
NSN 6645-00-391-6264
NSN 5965-01-204-8505
NSN 6620-01-085-2915
NSN 5895-01-252-8622
NSN 6240-01-549-9408
NSN 6135-01-555-3150
NSN 5999-01-225-8867
NSN 6110-00-455-6781