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 5910-00-552-1443
NSN 6650-01-371-5886
NSN 2925-01-459-8093
NSN 6610-01-564-0667
NSN 6610-01-541-5034
NSN 5855-01-105-7793
NSN 5975-01-584-5371
NSN 5915-01-408-6299
NSN 5965-00-139-1039
NSN 6685-00-336-3135
NSN 5930-00-723-3812
NSN 6150-00-407-1386