Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SL603-4-410S found under Fastener Panel by Shur Lok Corporation. The National Stock Number assigned to this part is 5340011894141, 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 SL603-4-410S.