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 5975-01-362-4857
NSN 5985-01-193-0464
NSN 6685-01-270-2303
NSN 7035-00-521-6423
NSN 6110-01-101-6722
NSN 6135-01-067-8331
NSN 6685-01-443-0596
NSN 5965-00-362-2158
NSN 6130-01-543-5718
NSN 5990-00-660-8885
NSN 6620-01-446-7290
NSN 5965-01-408-5990