Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WK-3367 U05 found under Transistor by Sanrex Corp. The National Stock Number assigned to this part is 5961016755767, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WK-3367 U05.