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 5998-01-556-0007
NSN 5975-01-052-7054
NSN 6240-01-311-1121
NSN 6240-01-429-9826
NSN 6650-01-321-7962
NSN 5965-00-529-0602
NSN 5998-01-217-4919
NSN 5998-01-524-6656
NSN 5855-01-621-0215
NSN 6620-00-043-6082
NSN 5935-00-989-8247
NSN 5990-01-271-1628