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 5905-01-217-9745
NSN 5915-01-096-3137
NSN 6130-01-235-1051
NSN 6135-00-826-4798
NSN 5895-01-484-9069
NSN 6320-01-288-4783
NSN 5945-00-013-9892
NSN 6650-01-247-2002
NSN 6240-01-134-4118
NSN 6145-01-333-8191
NSN 5950-01-327-5473
NSN 6135-00-196-5267