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 5985-01-021-1595
NSN 5855-01-020-7982
NSN 6240-01-474-5446
NSN 6135-00-299-6918
NSN 6130-01-237-2358
NSN 6645-01-590-9405
NSN 5965-01-049-8307
NSN 5925-01-194-3981
NSN 5998-00-600-2096
NSN 5835-01-464-7038
NSN 5960-01-506-7039
NSN 5920-01-244-4987