Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4KPC4KL found under Endlock by Wayne Dalton Corp. The National Stock Number assigned to this part is 2040000227096, and the Federal Supply Class is 2040 Marine Hardware And Hull Items. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4KPC4KL.