| Diagram | Fig. 11 — OIL TANK, SIDECOVERS, SILENCER · ref 34 |
| Subsystem | bodywork |
| Listed in parts books | 1969 |
BSA Spring washer, bracket to silencer (1/4" × 19/32" × .040")
A 1/4" x 19/32" x .040" spring washer used at bracket-to-silencer and other fastener joints across multiple assemblies.
This is a spring washer that shows up in the bracket-to-silencer joint, sized at 1/4" x 19/32" x .040". It's a small fastener-support part, the kind that goes under a nut or bolt head to keep tension on a mounting bracket instead of letting it work loose from vibration.
Read more
The catalog shows this washer turning up across a wide range of figures — silencer mounts, mudguard fittings, petrol tank and controls, electrical equipment plates, exhaust and cylinder barrel assemblies, sidecovers, and even the optional rear carrier and safety bar setup. That spread tells you it's a general-purpose spring washer that the factory used anywhere a 1/4" fastener needed to stay put, not a part built for one specific joint.
We don't have a model or year tied to this listing beyond the catalog record itself, so if you're matching it to a specific bike, best to confirm the bracket or fitting you're working with before you order.
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.
Sorry if we got something wrong here. If you think this information isn't correct, .