AS REQUESTED!! DYNACO ST-400 FUSE CAP(CAP ONLY WITH METAL FUSE CLIP). REPLACES DYNACO PART NUMBER 341077. ALSO USED IN THE ST-416 , MARK VI, AND OTHERS. THIS SECOND GENERATION FUSE CAP IS VERY HARD TO FIND. MANUFACTURED BY LITTELFUSE. IT IS AN EXACT FIT AND ALSO MORE RUGGED (LESS BRITTLE) THAN THE ORIGINAL.