Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H377641-3 found under Shim by Raytheon Technical Services Company. The National Stock Number assigned to this part is 5365016417171, 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 H377641-3.