Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UB2215 found under Washer Key by Bera Tilt Top Trailer Inc. The National Stock Number assigned to this part is 5310001249117, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like UB2215.