Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CA18231-3 found under Stud Plain by Bae Systems Operations Ltd. The National Stock Number assigned to this part is 5307013141313, and the Federal Supply Class is 5307 Studs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CA18231-3.