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 6610-00-338-7349
NSN 6135-00-826-4798
NSN 5985-01-606-8831
NSN 6620-01-083-4672
NSN 6240-01-091-4008
NSN 6145-01-094-1442
NSN 5895-01-582-3655
NSN 6135-01-429-9029
NSN 5975-01-170-4131
NSN 5855-01-346-2881
NSN 5895-00-383-5849
NSN 6610-01-462-5980