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 5935-01-462-5367
NSN 5998-01-241-3799
NSN 6620-01-481-1358
NSN 5895-01-503-0661
NSN 4140-01-337-0036
NSN 5925-00-063-7185
NSN 5905-01-190-0213
NSN 2925-00-433-5429
NSN 5950-01-156-7847
NSN 6150-01-441-0823
NSN 5960-01-632-6576
NSN 5915-01-577-1682