Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K872320-003 found under Roller Bearing by Kaman Aerospace Corporation. The National Stock Number assigned to this part is 3110016675810, 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 K872320-003.