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 5998-00-004-9381
NSN 6620-01-068-4498
NSN 6135-01-151-2705
NSN 6645-01-158-3592
NSN 6145-01-407-5938
NSN 5975-00-571-4143
NSN 6645-01-030-5288
NSN 5835-01-549-2911
NSN 5990-01-438-8228
NSN 5996-01-578-6162
NSN 5990-00-236-8152
NSN 5910-01-174-8580