Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SC5310-0021-387 found under Insert Screw Thread by Drs Icas Llc. The National Stock Number assigned to this part is 5325005816769, 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 SC5310-0021-387.