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 5925-01-441-9248
NSN 6145-01-607-6165
NSN 6130-00-925-2303
NSN 5930-00-584-4563
NSN 5985-01-085-6288
NSN 6650-01-317-1612
NSN 6650-00-088-4741
NSN 5895-01-309-8499
NSN 6685-01-357-1561
NSN 4140-00-805-9531
NSN 5835-01-314-2781
NSN 6240-01-633-9357