Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7B20RH found under Spindle by Rixson Firemark Inc. The National Stock Number assigned to this part is 5340003408071, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7B20RH.