| Also known as | F4019 |
| Diagram | Fig. 25 — PETROL (GAS) TANKS · ref 8 |
| Subsystem | fuel |
| Listed in parts books | 1964–1973 |
Serrated washer
A serrated washer used with petrol tank hardware, part number 82-4019 (formerly F4019).
This is a serrated washer, 82-4019, also known by its older F4019 designation. It turns up in the parts books under petrol tank and gas tank figures, so it's one of the small hardware pieces used in mounting or securing the tank rather than anything inside the fuel system itself.
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Serrated washers like this one bite into the mating surface to help keep a fastener from working loose over time, which is exactly the kind of thing you want on a tank fitting that sees vibration. The catalog shows it appearing across a run of petrol tank listings from the mid-60s into the early 70s, so it's a small item that shows up again and again on that job.
If you're chasing down a specific bolt or bracket on your tank and need to know exactly which one this washer pairs with, give the shop a call and we can confirm the fitment before you order.
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