Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM428PPH-LI found under Clamp Loop by Stauffenberg Walter Gmbh And Co Kg. The National Stock Number assigned to this part is 5340121639748, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SM428PPH-LI.