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 2925-00-566-4522
NSN 5960-01-013-7643
NSN 5965-01-250-3214
NSN 5945-01-304-5455
NSN 5945-00-379-6745
NSN 5945-00-214-1858
NSN 5935-01-521-3673
NSN 6135-01-500-0572
NSN 7035-01-235-6023
NSN 6645-01-023-0005
NSN 5950-00-576-3067
NSN 5985-00-814-3249