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 6130-00-727-6912
NSN 6105-00-817-4809
NSN 5905-01-142-2116
NSN 6220-01-364-8666
NSN 5925-01-460-6852
NSN 6620-01-322-0018
NSN 5945-01-573-8747
NSN 5999-00-249-9339
NSN 6645-00-704-3630
NSN 5905-01-374-3268
NSN 5996-01-321-1927
NSN 6110-00-502-2391