Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R5-0-SL5 found under by Aerol Co Inc. The National Stock Number assigned to this part is 5340015790517, 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 R5-0-SL5.