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 6320-00-261-9136
NSN 5925-01-108-9159
NSN 6145-01-424-8484
NSN 6650-01-258-5871
NSN 5965-01-258-5662
NSN 5996-00-900-4001
NSN 5975-01-304-7991
NSN 5835-01-658-8290
NSN 5990-01-157-0441
NSN 5835-00-233-6327
NSN 6135-00-488-4478
NSN 6610-01-375-9994