Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2523-12 found under Adapter Connector Fiber Optic by Ace And Company Inc. The National Stock Number assigned to this part is 6060015527790, and the Federal Supply Class is 6060 Fiber Optic Interconnectors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2523-12.