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 5950-00-367-2705
NSN 5915-01-205-7498
NSN 6650-01-116-4650
NSN 6145-00-192-7215
NSN 2925-01-497-4520
NSN 5930-00-623-6441
NSN 6105-01-063-7704
NSN 6110-00-845-0524
NSN 5910-01-104-5004
NSN 2925-00-301-0933
NSN 2925-01-156-9570
NSN 5999-01-588-2504