Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C 3747 449 B found under Stud Turnlock Fastener by Rheinmetall Soldier Electronics Gmb. The National Stock Number assigned to this part is 5325010642456, 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 C 3747 449 B.