Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number STW4-6042 found under Potting Compound by Atk Launch Systems Inc. The National Stock Number assigned to this part is 5330012367363, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like STW4-6042.