The BN-3 spinners were available from Aircraft Spruce up until a few years ago. Not sure what happened but they were manufactured by a company called ACS. I think this is the ACS company they used to work with:
https://acsproducts.co/our-products/machined-products/. Unfortunately I don't see spinners on the list. It might be worth reaching out to them and see if they still make the BN-3.
I believe ACS got out of doing those spinners. I got one with my Sensenich Prop and two cracked from clearly poor machining / stress risers and were replaced by Sensenich (but the parts were drop shipped by ACS who made them). The third I just never put on and went with the skull cap. Sold the spare on a long time ago - with a health warning.
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If you go to Sensenich's web site and look for the spinner to go with the propeller Sensenich state:
![[Linked Image]](https://www.cessna150152.com/forum/ubbthreads.php/ubb/download/Number/85462/filename/spinner.jpg)
