| Diagram | Fig. 20 — Oil Tank and Fittings, Oils, Lines, Cartridge Filter · ref 26 |
| Subsystem | engine bottom |
| Listed in parts books | 1975 |
Norton Tab Washer
A tab washer from the oil tank and filter fittings area, used to lock a fitting in place.
This is a tab washer that shows up in the oil tank and fittings section of the parts book, specifically tied to the oil lines and cartridge filter setup. It's a small locking washer with a bent tab (or tabs) meant to keep a nut or fitting from working loose under vibration.
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The catalog only shows this one appearing in a single listing, tied to 1975, so we don't have a lot of cross-reference history to lean on for this part. Given where it sits in the figure grouping, it's likely associated with the oil filter fitting, but we'd want to confirm that against your actual parts diagram before you order.
If you're working through an oil system rebuild and came across this number, it's worth having on hand, but check the fitting it's meant to secure before assuming it's a match.
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