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 5915-01-043-3230
NSN 6620-00-730-8699
NSN 5935-00-841-0178
NSN 5950-01-141-2061
NSN 6240-01-357-3244
NSN 5855-01-428-9456
NSN 5990-01-170-0077
NSN 6620-00-811-7614
NSN 6620-01-029-3705
NSN 5910-00-342-4338
NSN 6105-01-493-6478
NSN 5945-00-099-9857