Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99-6041393 found under Coupling Clamp Grooved by Nato Stock Number Assigned By An. The National Stock Number assigned to this part is 5342004716383, 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 99-6041393.