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 5905-01-437-5750
NSN 6650-00-134-5130
NSN 6135-01-477-2744
NSN 5905-00-608-7462
NSN 6145-00-003-9527
NSN 5895-01-144-0871
NSN 6320-00-098-2858
NSN 6240-01-633-9357
NSN 5998-01-348-8905
NSN 5930-00-042-7036
NSN 5930-01-108-0729
NSN 5910-01-573-6538