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 5945-00-197-7673
NSN 2925-01-444-6676
NSN 5950-00-862-6720
NSN 6610-00-034-3709
NSN 5965-00-267-4173
NSN 5990-01-204-4874
NSN 6620-00-246-5159
NSN 6130-01-262-6564
NSN 5960-01-353-0773
NSN 5920-01-044-5621
NSN 5910-01-442-6323
NSN 6610-01-462-5980