Dewalt 5140134-78 Nylock Nut

Product Description

The DEWALT 5140134-78 is a nylock nut designed as a genuine DEWALT replacement fastener for power tool repair and maintenance. Nylock nuts incorporate a nylon insert that grips thread flanks under vibration, preventing loosening during operation. This makes them well suited for power tool assemblies where mechanical vibration is constant. Licensed trades and experienced technicians rely on OEM-matched fasteners like this to restore equipment to factory specification after disassembly or component replacement.

This nylock nut is used in DEWALT power tool repair applications where the original fastener has been lost, damaged, or stripped during servicing. It is appropriate for residential and commercial tool maintenance contexts, typically installed by power tool repair technicians, electricians maintaining their own equipment, or other trades performing in-house tool servicing.

Key Features

• Nylon insert locks threads under vibration to prevent loosening
• OEM DEWALT replacement part for accurate fitment
• Designed for power tool assembly and repair applications
• Maintains factory torque retention characteristics

Compatibility

Designed as an OEM-style replacement fastener for DEWALT power tools requiring part number 5140134-78.

Installation Notes

Installation should be performed by a qualified technician familiar with the specific DEWALT tool being serviced. Power down and unplug the tool completely before disassembling any components or replacing fasteners. Use the appropriate hand tools for the fastener drive type and do not overtighten, as this can damage the nylon locking insert and reduce its effectiveness.

Technical Specifications

• Fastener Type: Nylock Nut

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: 5140134-78