Value Collection 4LN1/2 Stainless Steel Lock Nut Npt

Product Description

The VALUE COLLECTION 4LN1/2 is a stainless steel lock nut fitting designed to secure pipe assemblies and prevent loosening under vibration, pressure, or thermal cycling. It uses NPT (National Pipe Taper) threading for a reliable, pressure-rated connection in standard piping systems. The stainless steel construction resists corrosion in wet, chemical-exposed, or outdoor environments. At approximately 0.31 inches in length and 1.19 inches in width, this is a compact fitting suited for tight installations. It is sold individually and is commonly installed by licensed plumbers and pipefitters working on industrial, commercial, or mechanical piping systems.

This lock nut is appropriate for use in plumbing, HVAC, and general mechanical piping applications where NPT-threaded connections are required. The stainless steel material makes it a practical choice for installations exposed to moisture, mild chemicals, or temperature variation. It is suitable for both new construction and retrofit work where a reliable, corrosion-resistant locking fastener is needed at a pipe joint or fitting assembly.

Key Features

• Stainless steel construction for corrosion resistance in wet and chemical-exposed environments
• NPT end connection for compatibility with standard tapered pipe threads
• Compact profile: 0.31 inches in length, 1.19 inches in width
• Locks pipe fittings in place against vibration and thermal movement
• Sold as a single unit with a minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement or direct-install lock nut for standard NPT-threaded pipe assemblies in plumbing, HVAC, and mechanical piping systems.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC code requirements. Shut off the relevant fluid or gas supply and depressurize the line before beginning work. Use appropriate hand tools or a pipe wrench to thread and seat the lock nut fully without over-tightening, which can damage the NPT threads. Inspect threads for damage or debris before installation.