Iscar 5669476 Carbide Thread Mill Insert Npt 11.5 Tpi

Product Description

The ISCAR 5669476 is a carbide thread mill insert designed for cutting NPT (National Pipe Taper) threads at 11.5 threads per inch (TPI). Manufactured in the MT LNHT insert style with size code 2104, this insert carries the IC908 manufacturer grade and features a TiAlN coating applied via PVD process. It is suited for both internal and external thread milling operations. Licensed ISCAR tooling users and CNC machinists working in job shop, aerospace, and production environments will find this insert appropriate for demanding thread milling applications across a range of workpiece materials.

This insert is rated for use across multiple primary workpiece material classifications including ferritic and martensitic steels, cast iron, stainless steel, general steel, and heat-resistant superalloys, corresponding to ISO material codes H, K, M, P, and S. The NPT thread form at 11.5 TPI and an external pitch of 2.209 mm make it well suited for pipe thread applications in fluid systems, hydraulic manifolds, and precision machined components where tapered pipe threads are required. It is sold individually with a minimum order quantity of 2 units.

Key Features

• MT LNHT insert style, size code 2104, IC908 grade carbide substrate
• TiAlN coating via PVD process for thermal resistance and extended tool life
• NPT thread form, internal and external capability at 11.5 TPI
• External thread pitch of 2.209 mm
• Compatible with ISO material codes H, K, M, P, and S workpiece materials
• Conforms to ISO 13399 tooling data standards

Compatibility

Designed for use in ISCAR MT LNHT-style thread milling toolholders accepting size code 2104 inserts. Intended for CNC thread milling of NPT pipe threads on workpieces in steel, stainless, cast iron, and superalloy classifications per ISO material codes H, K, M, P, and S.

Installation Notes

Installation is performed by qualified CNC machinists or tooling setup technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate ISCAR insert clamp torque tool per the toolholder manufacturer instructions and ensure the seating pocket is clean and free of chips before placing the insert. Do not mix insert grades or sizes within the same toolholder body.