Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S2446-000A found under Bolt Square Neck by Sears Mfg Co. The National Stock Number assigned to this part is 5306013513454, 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 S2446-000A.