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 5935-01-394-3415
NSN 5910-01-394-4934
NSN 5915-01-530-4117
NSN 5855-01-352-7033
NSN 5990-00-197-0159
NSN 5915-01-252-6087
NSN 5895-01-500-2086
NSN 6105-00-925-5372
NSN 5905-01-348-3547
NSN 5920-01-647-3576
NSN 5935-00-097-6280
NSN 6105-01-013-9252