Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RJ12V280B found under Battery Assembly by Arjay Electronics Corp. The National Stock Number assigned to this part is 6140009302735, and the Federal Supply Class is 6140 Batteries Rechargeable. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RJ12V280B.