Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 230SFT091-401 found under Adapter Filler Cap by Alcoa Composites Inc. The National Stock Number assigned to this part is 1560012373688, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 230SFT091-401.