Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AN175C12 found under Bolt Close Toleranc by Aeronautical Standards Group. The National Stock Number assigned to this part is 5306013013754, 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 AN175C12.