Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HLT311DL-5-9 found under Pin Rivet by Huck International Inc. The National Stock Number assigned to this part is 5320011437468, and the Federal Supply Class is 5320 Rivets. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HLT311DL-5-9.