| Diagram | Fig. 13 — FRONT FORK · ref 33 |
| Subsystem | forks front |
| Listed in parts books | 1969–1970 |
BSA Sealing washer, restrictor bolt
Sealing washer fitted under the front fork restrictor bolt to prevent oil leaks.
This is a sealing washer that sits under the restrictor bolt in the front fork. The restrictor bolt is a small screw used to control damping by limiting oil flow inside the fork leg, and the washer's job is to keep that bolt from leaking damping oil once it's tightened down.
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It shows up in the front fork section of the parts books, appearing across a handful of catalog listings from 1969 to 1970. If you're rebuilding forks from this era and pulling the restrictor bolt for cleaning or replacement, this is the washer that goes back under it.
We don't have more detail on this one beyond its place in the fork assembly, so if you're not sure your bolt matches this washer, call the shop and we'll confirm fitment before you order.
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