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 5910-01-316-0398
NSN 5855-00-991-0096
NSN 5965-01-650-6481
NSN 5985-00-740-7154
NSN 5905-00-424-9177
NSN 6105-01-044-8070
NSN 6645-00-819-5045
NSN 7035-00-803-3056
NSN 5835-01-248-4320
NSN 4140-01-494-3267
NSN 5910-01-642-7021
NSN 5920-01-464-7016