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 6220-01-100-5093
NSN 6105-01-156-6873
NSN 6620-01-207-0667
NSN 5996-01-293-1573
NSN 5905-01-558-3846
NSN 5915-00-267-2783
NSN 5999-00-930-2346
NSN 6610-00-459-4582
NSN 6620-01-512-2016
NSN 6110-00-271-9928
NSN 5835-01-580-0446
NSN 5998-01-192-1897