Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 604D3-38F39 found under Insert Panel Fastener by Alcoa Fastening Systems Ltd. The National Stock Number assigned to this part is 5325000509288, 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 604D3-38F39.