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 6650-01-479-5386
NSN 5960-01-533-5162
NSN 6130-01-337-8406
NSN 6130-01-430-3330
NSN 6645-01-236-6387
NSN 5895-01-268-7337
NSN 5950-00-206-3213
NSN 5905-01-548-4576
NSN 6650-00-273-8732
NSN 6105-01-394-4175
NSN 5895-00-626-7495
NSN 5835-01-020-5650