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 5998-00-354-8399
NSN 5835-01-412-0344
NSN 5996-01-547-6638
NSN 5945-01-417-3059
NSN 6135-00-938-1351
NSN 6610-00-388-9188
NSN 7035-01-555-8793
NSN 6645-01-316-7456
NSN 5999-01-012-4884
NSN 5930-01-394-4964
NSN 5960-01-641-5493
NSN 6145-01-611-7640