Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 82 11 420 20 found under Stud Turnlock Fastener by Southco Inc. The National Stock Number assigned to this part is 5325012980665, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 82 11 420 20.