Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 374573-1L found under Support Structural Component Air by K And K Precision Manufacturing Inc. The National Stock Number assigned to this part is 1560006211319, 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 374573-1L.