Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H12NBSTD7 8 found under Universal Joint Vehicular by Buyers Products Company. The National Stock Number assigned to this part is 2520013549235, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H12NBSTD7 8.