Value Collection 6LN3 Stainless Steel Lock Nut Npt

Product Description

The VALUE COLLECTION 6LN3 is a stainless steel lock nut fitting designed to secure and seal threaded pipe connections in plumbing, HVAC, and industrial piping systems. Featuring NPT (National Pipe Taper) end connections, this lock nut threads onto standard NPT-threaded pipe or fittings to lock assemblies in place and prevent loosening under vibration or pressure cycling. The stainless steel construction provides corrosion resistance in wet, chemical-exposed, or outdoor service environments. It ships as a single unit and is suited for both new installations and retrofit work where a reliable threaded locking solution is required.

This lock nut is applicable in residential and commercial piping systems where NPT-threaded connections are standard. Typical use cases include securing union nuts, bulkhead fittings, and panel-mount pipe connections in plumbing distribution, mechanical rooms, and process piping. Licensed plumbers and pipefitters are the primary installers, though the straightforward NPT design makes it accessible for skilled maintenance technicians as well.

Key Features

• Stainless steel construction for corrosion resistance in wet and chemically aggressive environments
• NPT end connection compatible with standard tapered pipe threads
• Compact profile suitable for confined installation spaces
• Single-piece unit with no loose components

Compatibility

Designed as an OEM-style replacement or new-installation lock nut for systems using standard NPT-threaded pipe fittings.

Installation Notes

Installation is performed by a licensed plumber or pipefitter following IPC guidelines. Shut off system pressure and drain the line before removing or installing any threaded fitting. Use an appropriate pipe wrench or strap wrench to tighten the lock nut; avoid over-tightening, which can crack fittings or damage threads. Apply thread sealant or PTFE tape to NPT threads as required by local code.