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 5930-01-461-2904
NSN 6135-01-495-0933
NSN 6620-01-187-7267
NSN 5835-00-477-3162
NSN 5999-01-255-6322
NSN 6130-01-020-7307
NSN 6685-01-046-4462
NSN 6145-01-188-2789
NSN 5905-00-102-2307
NSN 6110-01-555-0857
NSN 5895-01-327-3624
NSN 5835-01-314-2781