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 5855-01-398-9548
NSN 5965-00-110-3330
NSN 5960-01-092-0163
NSN 5950-01-577-1632
NSN 6145-01-414-1028
NSN 6105-01-094-5268
NSN 5920-00-931-7979
NSN 5975-00-724-8501
NSN 6320-01-449-1014
NSN 5945-00-171-0290
NSN 5985-00-991-0604
NSN 6130-01-088-3137