Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HP5497-6-1 found under Bolt Shoulder by Heartland Precision Fasteners Inc. The National Stock Number assigned to this part is 5306011427177, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HP5497-6-1.