Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4-IN-W-O-LEGEND found under by Hanson C H Company The. The National Stock Number assigned to this part is 7520011609554, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4-IN-W-O-LEGEND.