Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AS300-12-29 found under Bolt Close Toleranc by Avibank Mfg Inc. The National Stock Number assigned to this part is 5306011434089, 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 AS300-12-29.