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 5985-01-394-3850
NSN 5905-01-492-5761
NSN 5985-00-727-5293
NSN 5965-01-050-7055
NSN 5835-00-690-8898
NSN 5975-01-597-3343
NSN 5835-00-378-1429
NSN 5835-01-113-8731
NSN 2925-01-307-2637
NSN 5975-01-252-3611
NSN 5985-01-441-7039
NSN 6320-00-242-3300