Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XTAK550 found under Elbow Pads by Safariland Llc. The National Stock Number assigned to this part is 4240016085544, and the Federal Supply Class is 4240 Safety And Rescue Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XTAK550.