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 6610-01-305-0954
NSN 6645-00-287-9192
NSN 5960-01-649-1341
NSN 5990-01-144-6994
NSN 5855-00-610-4052
NSN 5985-00-833-8063
NSN 5965-01-097-4867
NSN 5985-01-235-4182
NSN 6145-00-827-4958
NSN 5895-01-425-0773
NSN 5910-01-237-2621
NSN 5895-01-327-4153