Upload & Sell: On
| p.1 #4 · Finding Nikkor replacement parts... |
The filter ring part number is 1-K400-379. I doubt you'll find it in the U. S., Nikon USA has pretty severe penalties for any Authorized repair center selling parts. Your best bet is probably a non-authorized repair shop that has some left over from older stock since it's a discontinued lens. Used ones do come up on eBay every so often from parts salvagers.