Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS1672-4DL12 found under Rivet Blind by Peerless Aerospace Fastener. The National Stock Number assigned to this part is 5320012895464, 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 NAS1672-4DL12.