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 6240-00-964-3728
NSN 5965-00-067-7393
NSN 7035-01-357-7786
NSN 5855-01-395-0676
NSN 5999-00-970-3213
NSN 5930-01-544-8861
NSN 5975-01-505-3153
NSN 5930-00-915-3464
NSN 4140-01-061-9849
NSN 6105-01-384-3687
NSN 5965-01-193-5221
NSN 6110-01-300-7541