Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B301011055-1 found under Standoff Threaded S by Kearfott Corporation. The National Stock Number assigned to this part is 5340004488135, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B301011055-1.