Triumph 750 Stainless Acorn Rocker Feed Nut Set 3/8 x 24 tpi BSA Drive There are several part numbers

There are several part numbers but they all update to this rod and nut

Dimensions are metric

0461-59-040 (cupped 10mm)

The only way to remove those chrome seal holders (or Norton fork extensions) unless you're a monkey-wrenching

maybe just some minor rubbing here and there around the edges

Triumph 750 Stainless Acorn Rocker Feed Nut Set 3/8 x 24 tpi BSA Drive There are several part numbersTriumph's part number for these rocker feed nuts is 21 0550 or S550. They should fit all models of 750 twin from 1973 on, to my knowledge. American SAE thread, perfectly polished, STAINLESS STEEL showtime. This listing is for the pair shown.