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 5895-00-104-0618
NSN 5905-01-096-3054
NSN 6130-01-606-2519
NSN 6150-01-529-2327
NSN 5920-00-773-1282
NSN 5975-00-210-4652
NSN 5835-01-460-6054
NSN 6135-00-134-1337
NSN 6610-00-832-8791
NSN 5998-00-446-4109
NSN 5855-01-100-3272
NSN 5920-01-251-8746