| Also known as | S1852 |
| Diagram | Fig. 2 — CRANKCASE · ref 22 |
| Subsystem | engine bottom |
| Listed in parts books | 1970–1974, 1983 |
Nut — stator mounting (5/16" UN.F)
5/16 UNF nut for securing the stator on the Triumph engine, PN 21-1852.
This is the 5/16 UNF nut used to secure the stator on Triumph engines, sold under part number 21-1852 (also listed as S1852 in older parts books). It shows up across several crankcase and timing-side figures in the catalog, which fits with its job holding the alternator stator in place against the crankcase or timing cover.
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Because it appears in multiple figure listings spanning crankcase, chaincase, and timing cover sections, this is a nut that gets handled whenever someone's in that area of the engine for stator or timing gear work. It's a small, easy part to lose track of or strip out, so it's worth having a spare or two on the shelf.
Our catalog record covers appearances from 1970 into the early 1980s, but we don't have a breakdown by specific model here, so confirm fitment against your own parts book or give us a call before ordering.
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