Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4953103-4 found under Bracket Mounting by Aar Parts Trading Inc. The National Stock Number assigned to this part is 5340016286663, 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 4953103-4.