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 5996-00-498-4416
NSN 5905-01-521-6912
NSN 6145-01-487-6936
NSN 5930-00-518-4790
NSN 5996-01-118-5320
NSN 5895-01-007-1235
NSN 5960-01-143-1202
NSN 6110-00-253-9328
NSN 6240-00-758-6392
NSN 5895-01-391-8016
NSN 5960-00-418-3588
NSN 6220-00-872-7291