Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WM 4 1 1 2 found under Marker Identificati by Brady Corporation. The National Stock Number assigned to this part is 7690004501511, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WM 4 1 1 2.