Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XB4-BW34G5 found under Button Tack by Telemecanique Inc. The National Stock Number assigned to this part is 8315016268207, and the Federal Supply Class is 8315 Notions And Apparel Findings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XB4-BW34G5.