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Two-inch 316 stainless steel locknut with female NPT threads

Legend Valve

Legend Valve 416-168 2" 316 Stainless Steel Locknut FNPT

SKU CH-TNDY-H780Z

Two-inch 316 stainless steel locknut with FNPT threads for corrosion-resistant piping connections

  • 2" FNPT locknut fits standard pipe threads
  • 316 stainless steel resists corrosion in harsh environments
  • Legend Valve 416-168 model ensures reliable identification
  • New condition guarantees factory-original performance
  • California Prop 65 warning informs safe handling practices

2-Inch 316 Stainless Steel Locknut

This Legend Valve 416-168 locknut is a 2-inch FNPT fitting made from 316 stainless steel. It is intended for industrial plumbing assemblies that require corrosion-resistant threaded connections. The component suits maintenance engineers and pipefitters working with compatible stainless pipe systems.

Not for Non-Stainless or Different Thread Systems

Installers needing carbon steel, brass or plastic locknuts should select a different material. Buyers whose piping uses metric, BSPT or other non-FNPT thread standards cannot use this fitting. Projects that require a hex nut, coupling or reducing nut instead of a locknut must choose another part type.

FNPT Thread Standard

The single specification that decides fitment is the Female National Pipe Taper thread form. Only pipework cut to the matching FNPT standard will seal correctly with this locknut. Verify the thread specification before ordering.

Highlights

  • 2" FNPT locknut fits standard pipe threads
  • 316 stainless steel resists corrosion in harsh environments
  • Legend Valve 416-168 model ensures reliable identification
  • New condition guarantees factory-original performance
  • California Prop 65 warning informs safe handling practices

Specifications

BrandLEGEND VALVE

Questions about this item

Does the 316 stainless steel locknut require periodic re-tightening or replacement due to corrosion?

The 316 stainless steel construction resists corrosion in most water and chemical environments, so the locknut typically does not need scheduled replacement or re-tightening under normal service.

What is the first limit reached when the 2-inch FNPT locknut is under continuous pressure or vibration?

The practical limit is the thread engagement on the mating FNPT fitting; over-torquing can strip the tapered threads before the 316 stainless body yields.

Does the locknut generate any noise, heat or draw power during all-day operation?

As a passive mechanical fastener with no moving parts or electrical components, it produces no noise, no heat and consumes zero power regardless of how long the system runs.

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