Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W3841 found under Core Electromagneti by Stackpole Corp The. The National Stock Number assigned to this part is 5950005211185, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W3841.