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 5960-01-120-6523
NSN 5945-00-185-6609
NSN 6685-00-453-0178
NSN 6105-01-368-2481
NSN 6135-01-162-0943
NSN 5999-01-095-4517
NSN 5999-01-394-5186
NSN 6610-00-161-0568
NSN 6620-01-350-5103
NSN 5905-00-606-0894
NSN 6650-00-992-4540
NSN 5975-01-655-7390