Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 172-68-2 found under Mount Resilient Wea by Worthington Compressors Inc. The National Stock Number assigned to this part is 5342005976304, 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 172-68-2.