Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2270 STYLE 16X257 found under Needle Sewing Machine by Consolidated Sewing Machine Corp. The National Stock Number assigned to this part is 3530000799914, 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 2270 STYLE 16X257.