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Graco 194358 Plug 1/2-14 NPT

$14.00
In Stock
Part #: 194358

The Graco 194358 Plug 1/2‑14 NPT is a threaded plug used to safely seal unused 1/2‑inch NPT female ports on pumps or fluid systems. It ensures leak‑free sealing and maintains system integrity when portions of fluid‑path are not in use.

  • Part Number: 194358
  • Function: Port plug to seal 1/2″ NPT ports
  • Compatibility: Pumps, manifolds or fluid‑system ports using 1/2″ NPT threads
  • Installation: Screw into port with thread sealant and tighten per standard NPT installation guidelines
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Graco 194358 Plug 1/2‑14 NPT – Compatibility & Details

Compatible Equipment & Use

  • Graco pumps, fluid systems or fittings using 1/2‑14 NPT threaded ports that require a plug to seal unused ports.
  • Hydraulic or fluid‑transfer assemblies needing to block or cap off ports to prevent leaks or contamination.
  • Maintenance or system shutdown scenarios where fluid outlets or inlets must be sealed safely.
  • Any configuration referencing 1/2‑14 NPT plugs for safe capping of threaded pump or hose ports.

Product Overview

The Graco 194358 Plug 1/2‑14 NPT is a threaded plug designed to seal 1/2‑inch NPT (National Pipe Thread) female ports on pumps, manifold outlets/inlets or fluid‑system fittings. It provides a secure seal to prevent leaks, fluid loss or contamination when a port is not in use. Using a properly threaded NPT plug ensures reliable sealing under pressure — maintaining system integrity and safety.

Specifications

Specification Details
Part Number 194358
Component Type Thread Plug (1/2‑14 NPT)
Function Seal 1/2‑inch NPT female ports on pump or fluid‑system fittings
Compatible Equipment Types Pumps, manifolds, hoses or fluid‑system ports using 1/2‑inch NPT threads
Thread Standard 1/2‑14 NPT (tapered pipe thread)
Installation Screw plug into unused port until hand‑tight and then wrench‑tight per threaded‑seal guidelines, using thread sealant as needed for leak prevention.

Key Features

  • Secure Port Sealing: Effectively seals unused 1/2″ NPT ports to prevent leaks or fluid egress.
  • Tapered Thread Design: Uses NPT standard threads for reliable mechanical and hydraulic sealing when properly installed.
  • OEM‑Compatible Fitment: Matches standard Graco and industrial pump thread specifications for safe port capping.
  • Pressure‑Resistant Seal: Maintains seal integrity under pump pressure and prevents fluid escape or contamination.
  • Easy Installation: Simply screw into threaded port using hand wrench and appropriate thread sealant; no special tools required.

Frequently Asked Questions

It seals unused 1/2‑inch NPT ports on pumps or manifolds to prevent leaks and fluid loss.

Yes — when installed correctly (hand‑tight plus wrench turn) with proper thread sealant, NPT threads form a pressure‑tight mechanical seal that prevents leaks.

No — simply screw the plug into the NPT port until snug, then apply sealing tape or compound and tighten to proper wrench‑torque for a leak‑free seal.

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