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 5990-00-629-2794
NSN 5855-01-272-3660
NSN 6220-01-388-2624
NSN 6320-00-456-0836
NSN 5920-00-753-5113
NSN 7035-00-628-3471
NSN 6610-01-027-8736
NSN 5960-00-065-5750
NSN 5950-00-334-7934
NSN 6135-01-307-2749
NSN 6145-00-931-2437
NSN 6110-01-519-0258