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 5975-01-476-3105
NSN 2925-00-180-2532
NSN 5945-01-018-0623
NSN 5895-01-152-1514
NSN 5835-00-283-3616
NSN 6685-00-894-3208
NSN 5950-00-192-9623
NSN 6110-01-285-1934
NSN 5855-01-075-1292
NSN 6135-00-826-4798
NSN 5920-00-610-3209
NSN 5950-00-761-6678