Originally posted by Craigbob Ricoh imaging told me today that it is only availble to authorized repair centers.
Yes it is correct, the lens collar/foot isn't a product for sale, it is a spare part for repair. Therefore, only the repair centers are allowed to order this part and there is only commonly used repair part in US and EU because they don't stock all Pentax repair parts outside of Japan. So, the process consists of contacting a repair center, asking them a price and delivery time estimate for them to order the part at Ricoh in Japan.
Originally posted by Craigbob WHY IS IT SO HARD TO GET A PART FROM PENTAX?
No, it's easy. I ordered grip rubber parts for my K1, they did not have it in stock. They emailed Japan for asking the price and how long it takes to deliver to my place in EU. Ricoh responded the next day. Given the price, I explicitly wrote to order the parts. They confirmed the order to Ricoh. I received the parts two weeks later, delivered in front of my door by UPS and I paid the price including the cost of shipment and import tax. It wasn't hard at all.
KEH and B&H aren't a repair center, it is a camera shop, they don't sell repair parts because it's not their job. I just think you are asking the wrong things to the wrong persons.
If you are located in the USA, the Ricoh Imaging US site indicates that the official repair center for the USA territory is Precision Cameras (see here:
http://www.precisioncamera.com/Ricoh/ ). Precision Camera has a contract with Ricoh Imaging so that they have access to repair manuals, repair parts , training etc. You contact (don't use the phone, use email always and keep all emails) Precision Cameras are the address provided by Ricoh Imaging, and tell them you want to order the part you are looking for and if they don't have it you ask them how much it cost to order it at Ricoh Japan.