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 6650-00-440-3537
NSN 6620-01-020-1722
NSN 6220-00-469-3292
NSN 5996-01-212-3066
NSN 5990-01-489-0366
NSN 5945-01-094-6343
NSN 4140-01-128-4939
NSN 6610-01-022-2474
NSN 5960-01-175-7309
NSN 6320-00-539-9283
NSN 5990-01-419-0661
NSN 5835-01-321-2906