Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 70363-1 found under Shim Kit by Surefire Llc. The National Stock Number assigned to this part is 5140016183963, and the Federal Supply Class is 5140 Tool And Hardware Boxes. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 70363-1.