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Brass pin-lug fire hose adapter, sandblast finish, straight rigid form

Value Brand

Value Brand 3LZ41 Pin Lug Coupling FNSTxMNST 2-1/2 Inx1-1/2 In

SKU CH-ETM1-MNS3X

Brass pin-lug fire-hose adapter connects 2-1/2 in female NST to 1-1/2 in male NST with rigid straight construction

  • Brass construction resists corrosion for long service life
  • Rigid straight design maintains alignment under pressure
  • Pin lug tightening allows quick tool-free connection
  • NST female-to-male threads adapt 2-1/2 to 1-1/2 inch hose
  • Prop 65 listed for cancer and reproductive-harm awareness

ZORO SELECT Pin Lug Coupling FNST × MNST

This brass straight adapter connects a 2-1/2 inch female NST thread to a 1-1/2 inch male NST thread using pin lug tightening. It is built for fire hose and industrial water line assemblies where rigid, leak-free joints are required.

Pin lug tightening limits adjustment under pressure

The rigid pin lug design locks the faces together without swivel movement, so alignment must be set before pressurisation. Sandblast finish resists surface corrosion but offers no additional sealing beyond the metal-to-metal NST thread engagement.

Replaces worn or mismatched NST brass adapters

Upgrade when existing couplings show thread deformation, corrosion pitting or incompatible gender combinations that prevent a secure connection. The jump is worth it if current fittings leak at operating pressure or cannot mate the required hose diameters.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $19.99
Typical for this category: the median of 2,955 items is $17.99.

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Should I choose the 2-1/2 inch female end or the 1-1/2 inch male end for my hose?

The coupling has a 2-1/2 inch female NST thread on one side and a 1-1/2 inch male NST thread on the other; you need both to connect the two different hose sizes.

How does the 2-1/2 by 1-1/2 inch size work when installed on a fire line?

It reduces a 2-1/2 inch female NST connection down to a 1-1/2 inch male NST connection in a straight rigid brass body.

What does the pin lug tightening method mean for the NST threads?

Pin lugs let you hand-tighten the brass coupling onto NST threads without tools, giving a secure rigid joint.

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