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 5965-00-082-8987
NSN 2925-00-659-3522
NSN 5998-01-516-1524
NSN 5895-01-417-7101
NSN 4140-00-419-6174
NSN 5910-00-523-7977
NSN 6145-01-204-9529
NSN 6150-01-562-7236
NSN 6145-00-988-8711
NSN 7035-01-048-7122
NSN 5960-00-104-5955
NSN 5965-00-680-9749