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 6150-01-603-3030
NSN 5930-00-929-7869
NSN 5915-01-350-2407
NSN 5930-01-024-7620
NSN 5835-00-289-9080
NSN 2925-01-356-6017
NSN 5915-01-285-1325
NSN 6645-01-500-0827
NSN 5895-01-592-6431
NSN 5965-00-612-0072
NSN 5985-01-569-1603
NSN 4140-00-245-2715