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 6130-01-475-9437
NSN 5965-01-326-0606
NSN 6105-01-543-5539
NSN 6650-01-207-0829
NSN 6145-01-471-7901
NSN 5835-01-157-5886
NSN 5895-00-280-0416
NSN 5935-00-826-8483
NSN 5965-01-523-4572
NSN 5950-00-216-7548
NSN 5920-01-234-8309
NSN 6145-00-423-1563