Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 48-20-101-10 found under Fastener Adjustable by Southco Inc. The National Stock Number assigned to this part is 5325007091480, 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 48-20-101-10.