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 5950-01-422-1361
NSN 6240-01-547-2026
NSN 6110-00-836-3324
NSN 5985-00-351-6789
NSN 5855-01-364-8193
NSN 6145-01-252-7675
NSN 5960-01-453-0999
NSN 6135-01-560-5853
NSN 5895-01-544-8869
NSN 4140-01-135-3740
NSN 5996-01-406-4035
NSN 5935-00-071-2141