Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MT22 1158B found under Shim by Marmon Herrington Company Inc. The National Stock Number assigned to this part is 5365015284514, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MT22 1158B.