Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BS6-1690PC11 found under Stud Plain by Warren Pumps Llc. The National Stock Number assigned to this part is 5307002064023, 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 BS6-1690PC11.