Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3-5271 found under Mirror Inspection by Armor Holdings Forensics Llc. The National Stock Number assigned to this part is 5120015728720, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3-5271.