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 5996-01-503-3410
NSN 6135-00-180-5125
NSN 5996-00-827-8651
NSN 6145-00-238-3886
NSN 5920-01-469-3058
NSN 6320-00-116-3658
NSN 5965-00-763-8015
NSN 6135-00-152-8729
NSN 6685-01-340-1970
NSN 5925-01-414-6866
NSN 5935-01-132-3432
NSN 6110-00-455-3462