Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 135X17 SIZE 20 found under Needle Sewing Machine by Consolidated Sewing Machine Corp. The National Stock Number assigned to this part is 3530002572819, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 135X17 SIZE 20.