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 6620-01-067-8952
NSN 6610-00-682-6215
NSN 5925-01-417-1942
NSN 6145-01-166-3714
NSN 6110-00-878-9118
NSN 5996-00-231-9322
NSN 5935-01-396-9433
NSN 5990-01-583-2870
NSN 6220-01-653-9113
NSN 6135-01-255-9129
NSN 6135-01-413-4747
NSN 5835-01-378-6804