Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3W21458 found under Weight Unloader Compressor by Ir Ingersoll Rand. The National Stock Number assigned to this part is 4310013060292, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3W21458.