Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 02331-1230 found under Setscrew by Leidos Inc. The National Stock Number assigned to this part is 5305011619973, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 02331-1230.