Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 90290-09K found under Ball Bearing by Griswold Industries Co. The National Stock Number assigned to this part is 3110016446028, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 90290-09K.