Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8187-1-13 found under Stud Shouldered by Chief Of Engineers. The National Stock Number assigned to this part is 5307006370856, 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 8187-1-13.