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 5910-01-339-5022
NSN 6130-01-296-0806
NSN 5920-01-644-8740
NSN 6130-00-406-1868
NSN 5998-00-541-8792
NSN 4140-01-555-8190
NSN 6650-00-486-7924
NSN 5975-01-069-3236
NSN 5985-00-858-1290
NSN 6145-01-223-4916
NSN 5915-01-318-4447
NSN 5905-00-920-7101