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 6145-00-117-8861
NSN 5835-01-606-3086
NSN 6150-01-537-8766
NSN 6320-00-857-4073
NSN 6645-00-658-7838
NSN 5905-00-805-2527
NSN 6645-01-398-9102
NSN 5950-00-849-6372
NSN 6130-01-276-5980
NSN 6650-01-577-8958
NSN 6240-00-630-8069
NSN 6610-00-515-6462