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 6130-00-492-0266
NSN 6105-00-133-1582
NSN 4140-01-535-6477
NSN 6620-01-176-6956
NSN 6650-00-065-4280
NSN 5960-01-077-4551
NSN 5835-01-281-7281
NSN 7035-01-146-7096
NSN 5998-00-444-7815
NSN 5925-01-304-9489
NSN 6145-00-538-9885
NSN 6110-01-022-4228