Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4T31230-106A found under Skin Aircraft by Swiss Pattern Corp. The National Stock Number assigned to this part is 1560001027744, 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 4T31230-106A.