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 6610-01-340-1761
NSN 6240-00-560-5426
NSN 5945-00-899-6053
NSN 4140-00-862-5644
NSN 5835-00-841-2650
NSN 5996-01-441-1594
NSN 5930-01-227-7268
NSN 6645-00-521-0353
NSN 6645-01-351-1154
NSN 5990-01-176-9731
NSN 5960-01-224-0414
NSN 5835-00-127-6437