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 5990-01-296-8190
NSN 6240-01-014-3447
NSN 2925-00-090-5018
NSN 5965-00-549-0220
NSN 5950-01-351-8829
NSN 5835-01-442-6482
NSN 4140-01-486-8953
NSN 5975-01-207-6157
NSN 5930-00-818-5600
NSN 5895-01-323-4754
NSN 5835-01-538-8080
NSN 5965-01-351-6977