Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 172-5918 found under Battery Storage by Rs Components Sas. The National Stock Number assigned to this part is 6140011603873, 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 172-5918.