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 6110-01-609-7884
NSN 5960-00-522-5231
NSN 6645-01-373-2262
NSN 6610-01-099-0303
NSN 5925-00-379-0920
NSN 6150-01-307-6384
NSN 5855-00-797-8217
NSN 5895-01-478-7712
NSN 5895-01-376-0482
NSN 5990-01-503-0194
NSN 6105-00-596-9962
NSN 5920-01-051-8086