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 5835-01-422-2399
NSN 5996-00-382-0281
NSN 5985-00-541-7714
NSN 6135-01-370-2599
NSN 5996-01-281-3234
NSN 6620-00-153-0982
NSN 6320-01-307-0467
NSN 5998-00-633-5169
NSN 5950-01-207-5157
NSN 6610-01-455-4977
NSN 5895-00-706-9451
NSN 5935-01-184-6583