Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X1AK22-E19702 found under Washer Valve Spring by Dresser Rand Co. The National Stock Number assigned to this part is 5310009692046, 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 X1AK22-E19702.