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 5996-01-467-9391
NSN 6650-01-423-1348
NSN 5990-01-544-4360
NSN 5960-00-706-5439
NSN 6150-01-589-5834
NSN 5985-00-271-9502
NSN 2925-00-724-9252
NSN 5945-01-378-6860
NSN 5895-01-304-5497
NSN 5930-00-293-8197
NSN 5999-01-579-3601
NSN 5950-01-228-2202