| Diagram | Fig. 21 — ELECTRICAL EQUIPMENT (Plate 14) · ref 9 |
| Listed in parts books | 1969–1970, 1973 |
BSA Spring washer, speedometer and tachometer (13/64" x 21/64" x 1/16")
Spring washer for speedometer/tachometer mounting, 13/64" x 21/64" x 1/16".
This is a spring washer sized for the mounting stud on the speedometer and tachometer, listed at 13/64" x 21/64" x 1/16". It shows up across several electrical equipment sections in the parts book, which is where instruments and their fittings get grouped even though the gauges themselves aren't wiring.
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It's a small hardware item, the kind that keeps the instrument bracket or mounting nut from working loose under vibration. The catalog record doesn't tie it to a specific model or year beyond the general span it appears in, so if you're matching up an original instrument mount, check the fit against what's on the bike before you order.
Given the size, it's worth having a couple on hand any time you're pulling the speedo or tach off for service, since these small washers have a way of walking off the bench.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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