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Graco 101958 Male Connector

The Graco 101958 Male Connector ensures a reliable tube-to-port connection for industrial fluid systems. Ideal for precise 3/8" tube to 3/8" NPT (male) fittings, maintaining leak-free performance.

  • Connects 3/8" OD tube to 3/8" NPT (male) port
  • Used in Graco President 30:1 and similar systems
  • Ensures OEM fit and high-pressure sealing integrity
  • Durable construction for long service life

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Connector, Male 101958 – Specs & Compatibility

Compatible Machines

  • Graco 231063 Series C (30:1 President) — parts list references 101958 “Connector, Male”.
  • Also used in select Graco industrial fluid systems with 3/8" OD tube on 9/16-18 tube thread to a 3/8" NPT (male) port. Please verify your machine’s parts list for part # 101958 before ordering.

Technical Specifications

Part Number 101958
Description Connector, Male
Tubing Interface 9/16-18 (tube thread) for 3/8" OD tube
Port Thread 3/8" NPT (male)
Typical Use Tube-to-manifold/port connection in Graco industrial sprayer and pump systems
Notes Confirm thread/tube specs and the machine’s parts book lists 101958 before installation

Key Benefits

  • Maintains OEM fit and sealing performance
  • Correct interface for 3/8" OD tube → 3/8" NPT (male) ports
  • Supports reliable, leak-resistant connections in Graco fluid systems

Installation & Safety Notes

  • Depressurize the system fully before service.
  • Inspect and clean threads; replace damaged components.
  • Hand-start threads; tighten to manufacturer-recommended torque.
  • Pressure-test and check for leaks after installation.

Frequently Asked Questions

Check your machine’s parts book. If it lists part # 101958 (or the exact interface 9/16-18 tube thread for 3/8" OD tube to 3/8" NPT (male) port), it is compatible. Otherwise, a different fitting may be required.

Use only if it matches all specs (thread types, tube size, pressure rating, material compatibility). Non-OEM parts may affect performance or warranty.

Cross-threading, inability to start by hand, leaks under pressure, or visible gaps at the interface. Stop and verify specs if any of these occur.

For tapered NPT threads, an appropriate sealant (e.g., thread tape or liquid sealant compatible with your fluid) is typically used. Follow the machine manual and sealant manufacturer’s instructions.

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