Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SB-201A found under Cell Battery by Rotating Precision Mechanisms Inc. The National Stock Number assigned to this part is 6140015944888, 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 SB-201A.