Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SP2-0-328AR found under Spacer Sleeve by Drs Icas Llc. The National Stock Number assigned to this part is 5365004984644, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SP2-0-328AR.