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1972 Honda CB350F0 Steering-Stem Nuts & Washer

The CB350F0 steering-hardware selection covers the visible stem nut and its separate washer. Choose chrome or a black machined finish after confirming the stem fitted to the motorcycle, particularly if the fork or top bridge has been replaced.

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Honda CB1000 CB900 CB750 CB550 chrome steering stem nut 90304-415-000

Honda CB Chrome Steering Stem Nut ~ Replaces 90304-415-000

$9.95 USD
49-0786
Replace your steering stem nut with this Chrome Steering Stem Nut, hex nut size 30mm, replacing OEM #90304-415-000.Sold each. We also offer the matching...
Honda CB1000 CB900 CB750 CB550 steering stem washer 90503-283-000

Honda CB Steering Stem Washer ~ Replaces 90503-283-000

$3.50 USD
49-0787
Replace your steering stem washer with this Chrome Steering Stem Washer, replacing OEM #90503-283-000.Sold each, order the quantity you require.Key Features• Chrome steering stem...
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Honda CB750 CB550 black steering stem nut joker machine 90304-415-000

Honda CB Black Steering Stem Nut ~ Joker Machine ~ Replaces 90304-415-000

$47.95 USD
12-0073
Dress up your steering stem with this Joker Machine Black Steering Stem Nut, 30mm hex, replacing OEM #90304-415-000. High-quality CNC-machined and made in the...
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1972 Honda CB350F0 · Steering-Stem Nuts & Washer Buying guide

Match the stem first, then choose the finish

The two nuts share the stated replacement reference and a 30mm hex. The washer is separately listed. Compare the existing stem and surrounding parts before choosing cosmetic hardware for a mixed or modified front end.

Parts to consider

Honda CB Chrome Steering Stem Nut ~ Replaces 90304-415-000 Chrome steering-stem nutSold individually, with a 30mm hex; replacement reference 90304-415-000.View part Honda CB Steering Stem Washer ~ Replaces 90503-283-000 Steering-stem washerChrome washer referencing 90503-283-000, sold individually.View part Honda CB Black Steering Stem Nut ~ Joker Machine ~ Replaces 90304-415-000 Black Joker Machine stem nutUSA-made CNC-machined steering-stem nut with a 30mm hex.View part

Choose chrome or black without losing the fit check

The chrome replacement and black Joker Machine nut both reference 90304-415-000 and have a 30mm hex. The black option is CNC-machined in the USA. Those shared product facts support a finish comparison, but a changed stem still requires an application check.

Keep the washer in the repair plan

The chrome washer references 90503-283-000 and is sold separately. Inspect the existing piece rather than assuming it accompanies a replacement nut. Follow the CB350F service information for steering assembly and adjustment; visible top hardware is only one part of that system.

Buying questions

Does 30mm describe the nut’s thread?

No. The listing identifies 30mm as the hex size for the nut. Do not use that figure as a thread specification when comparing a different steering stem or ordering hardware for a modified front end.

Is the washer included with the nut?

The washer is a separate listing and is sold individually. Inspect the washer already fitted and add it if required; choosing a replacement stem nut alone does not establish that all associated hardware is supplied.

Will either nut fit a swapped front end?

Verify the stem’s application and fastening specification first. These parts are listed for the original CB350F arrangement, but a different stem or top bridge needs its own comparison even if the visible nut size looks similar.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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