Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LA4SR40 found under Pin Quick Release by Productos Ferrosos Peninsulares. The National Stock Number assigned to this part is 5315009338173, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LA4SR40.