Keystone Threaded Products NQ016AC1A003840 Precision Acme Nut

Product Description

The KEYSTONE THREADED PRODUCTS NQ016AC1A003840 is a round precision acme nut machined from bronze, designed for use in linear motion assemblies, lead screw mechanisms, and power transmission applications. It features a 1.375-16 acme thread profile with a 2C class of fit, providing controlled clearance suitable for general-purpose and moderate-precision linear drive systems. The overall length is 1.5 inches, the overall height is 1.5 inches, and the threaded engagement length is 0.5 inches. The right-hand, single-start thread configuration makes it compatible with standard acme lead screw setups. Weighing 0.601 pounds, this nut is suited for mechanical and industrial assemblies requiring reliable load transfer and corrosion resistance.

This precision acme nut is used in applications where a lead screw drives linear motion, such as machine tools, jigs, fixtures, valve actuators, and industrial positioning equipment. The bronze material provides natural lubricity and wear resistance, making it a practical choice for applications with limited lubrication access. Machinists, millwrights, and maintenance technicians typically install this component in both new builds and retrofit or repair scenarios across light industrial and mechanical service environments.

Key Features

• 1.375-16 acme thread profile for standard lead screw compatibility
• 2C class of fit for general-purpose linear motion applications
• Bronze construction provides natural lubricity and corrosion resistance
• Right-hand, single-start thread direction matches standard acme lead screws
• Round body profile with 1.5 inch overall diameter for straightforward housing installation
• 0.5 inch thread engagement length suitable for moderate load applications

Compatibility

Designed as a replacement or service nut for standard 1.375-16 acme lead screw assemblies requiring a 2C class of fit in round bronze nut form.

Installation Notes

Installation is typically performed by a machinist or maintenance technician. Always de-energize and lock out any machinery before replacing a lead screw nut. Inspect the mating acme lead screw for wear before installing a new nut, as a worn screw will accelerate nut wear. Ensure the housing bore is clean and properly sized to accept the 1.5 inch outer diameter before pressing or threading the nut into position.