Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 22A4C8 found under Nut Lock Valve Bolt by Ir Ingersoll Rand. The National Stock Number assigned to this part is 4310009638934, 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 22A4C8.