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 6145-01-021-5346
NSN 5998-01-457-0129
NSN 5996-00-901-0519
NSN 5998-01-187-8250
NSN 7035-01-083-0282
NSN 5935-01-273-4215
NSN 6145-01-169-3001
NSN 4140-01-416-7453
NSN 5998-00-776-0163
NSN 6105-00-406-2743
NSN 5998-00-981-9328
NSN 5960-00-300-2358