| Diagram | Fig. 16 — Swinging Arm, Suspension Units, Chainguard · ref 4 |
| Subsystem | primary |
| Listed in parts books | 1975 |
Norton Seal Assembly
A seal assembly for the Norton swinging arm pivot area, per the parts-book figure listing.
This is a seal assembly listed against the swinging arm and suspension figures in the catalog, appearing in a single record for the 1975 model year. Given the figure context, it's associated with the swinging arm pivot area rather than the primary drive or chainguard, keeping grease in and road grit out of the pivot bushes.
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The canonical description on file is brief, just "Seal Assembly," so we're going by where it shows up in the parts book rather than a fuller spec sheet. Norton owners will recognize this as one of those small parts that's easy to overlook until the swinging arm starts feeling loose or wet with old grease.
We don't have more detail on this one beyond the figure placement and the single catalog appearance. Give us a call to confirm it matches what you've got before you order.
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