Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MS21919WCJ40 found under Clamp Loop by Department Of Airforce. The National Stock Number assigned to this part is 5340014974172, 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 MS21919WCJ40.