Iscar 5993037 Threading Insert 14 Tpi Npt Solid Carbide IC908

Product Description

The ISCAR 5993037 is a solid carbide laydown threading insert designed for cutting internal NPT threads. It carries the IC908 manufacturer grade with a PVD-applied TiAlN coating, giving it wear resistance across a wide range of workpiece materials. The insert produces right-hand internal threads at 14 threads per inch to the NPT thread standard. It features a 3/8 inch (0.3750 inch decimal) inscribed circle and a thickness of 0.1430 inches. This insert is used by machinists and toolroom professionals on CNC lathes and manual threading setups where consistent, leak-free NPT pipe thread profiles are required.

The 5993037 is suited for threading operations on pipe fittings, manifolds, and fluid-system components that require NPT-standard internal threads. Its universal primary workpiece material compatibility covers a broad range of material grades including carbon steels, cast irons, stainless steels, non-ferrous alloys, high-temperature alloys, and hardened materials. It fits the ISCARTHREAD series toolholding system and is appropriate for both light production and job-shop threading applications where a single insert grade needs to perform across multiple material types.

Key Features

• IC908 grade solid carbide substrate with PVD TiAlN coating for extended tool life
• 14 TPI right-hand internal NPT thread profile for pipe and fitting applications
• 3/8 inch inscribed circle (0.3750 inch decimal) laydown insert geometry
• Universal material compatibility covering steel, stainless, cast iron, non-ferrous, and superalloy workpieces
• ISO 13399 compliant insert data for integration with tool management systems
• Part of the ISCARTHREAD series for use with compatible ISCAR toolholders

Compatibility

Designed for use with ISCAR ISCARTHREAD series toolholders that accept 16IR style laydown threading inserts. Confirm holder designation and insert seat geometry before ordering.

Installation Notes

This insert is installed by a machinist or toolroom technician into a compatible ISCAR ISCARTHREAD series toolholder. Ensure the machine spindle is fully stopped and all stored energy is released before changing inserts. Use the correct torx or hex key specified by the toolholder manufacturer to seat the insert clamp to the recommended procedure - do not overtighten by feel alone. Verify thread profile and pitch with a thread gauge on the first part before committing to production volume.