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 5990-00-578-8850
NSN 5990-01-331-2221
NSN 5910-00-453-0532
NSN 6110-00-378-8458
NSN 5990-00-572-1419
NSN 5945-01-347-2208
NSN 6650-00-724-8258
NSN 5998-01-207-8996
NSN 7035-01-388-6943
NSN 5996-01-399-6677
NSN 5965-00-732-8608
NSN 7035-01-045-7202