REPLACES ORIGINAL PART NUMBER 4-80 ON SOME REELS
The 4-50 washer can be used as a substitute for the 4-80 washer. The inside diameter of both washers is the same. A 4-50 has a slightly narrower in outside diameter then the 4-80. Both the 4-50 and 4-80 teflon washers have the same thickness.