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 5905-01-129-2672
NSN 6685-00-711-0616
NSN 5990-01-632-0969
NSN 5950-00-505-0263
NSN 6135-00-209-6918
NSN 5985-01-220-2678
NSN 5930-00-252-4133
NSN 5930-00-172-8689
NSN 5895-00-094-2508
NSN 5996-01-062-0807
NSN 5985-01-551-6486
NSN 5920-01-568-8995