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 5945-01-121-7227
NSN 5990-00-056-3177
NSN 5945-01-487-4127
NSN 5950-01-278-1931
NSN 5915-01-032-4475
NSN 6620-01-253-0374
NSN 5998-00-107-6012
NSN 5945-01-527-0936
NSN 5895-01-167-0404
NSN 6130-00-004-9417
NSN 6240-01-568-6745
NSN 5915-01-502-4285