Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F39000312 found under Spacer Ring by Funk Mfg Co. The National Stock Number assigned to this part is 5365013536082, 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 F39000312.