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 6130-01-034-6057
NSN 6145-01-469-6276
NSN 5945-01-377-5804
NSN 6105-00-449-9319
NSN 5950-00-199-9654
NSN 5855-01-290-3248
NSN 6145-00-837-3157
NSN 6105-01-408-4559
NSN 5855-00-832-9341
NSN 6105-01-256-3359
NSN 5985-01-474-9203
NSN 4140-01-424-3270