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 5945-01-531-0136
NSN 6320-00-360-1301
NSN 5945-01-370-3994
NSN 5960-01-061-9166
NSN 5835-01-392-3105
NSN 6610-01-280-3429
NSN 5975-01-592-5757
NSN 5999-00-812-9253
NSN 6135-01-604-8739
NSN 5910-00-488-3644
NSN 5960-00-952-3011
NSN 5905-01-384-2789