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 6620-01-044-3371
NSN 7035-00-946-2642
NSN 5920-01-228-0577
NSN 6610-01-211-6182
NSN 5950-00-960-6799
NSN 6645-00-069-4381
NSN 6110-01-227-3869
NSN 5855-00-912-3885
NSN 6685-00-001-4183
NSN 5990-00-466-2952
NSN 6240-00-079-0112
NSN 5990-01-217-4590