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 5945-00-388-3253
NSN 5990-01-032-8368
NSN 5990-00-816-9289
NSN 5945-00-866-1313
NSN 5975-01-370-7099
NSN 6220-00-258-2967
NSN 6320-01-556-2011
NSN 2925-01-092-7335
NSN 5996-01-470-1404
NSN 6145-00-570-0516
NSN 5960-01-599-9821
NSN 5920-00-901-7436