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Graco 114850 Large Flange Hex Nut

OEM large-flange hex nut from Graco — part # 114850 — for secure fastening of pump housings or manifolds.

  • Built-in flange distributes load, acting like a washer.
  • Ensures stable, leak-free assembly under pressure or vibration.
  • Use when replacing nuts on diaphragm-pump assemblies or other Graco equipment housings.

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Compatible Assemblies for the Graco 114850 Large-Flange Hex Nut

  • Graco diaphragm-pump assemblies where parts diagram lists 114850 – NUT, hex, large flange. :contentReference[oaicite:5]{index=5}
  • Any housing, manifold, or bolted cover joint in Graco fluid-handling or spray equipment that originally uses this large-flange hex nut for secure fastening. :contentReference[oaicite:6]{index=6}

Product Overview

The 114850 Large-Flange Hex Nut is a genuine OEM nut from Graco featuring a built-in wide flange that acts like an integrated washer — distributing load and preventing damage to housing or cover surfaces under bolt/nut compression. Its durable construction (often stainless or corrosion-resistant) makes it suitable for demanding pump and fluid-handling environments where vibration or pressure stresses exist. :contentReference[oaicite:7]{index=7}

Key features include:

  • Large flange base distributes load and protects mounted surfaces (instead of separate washer). :contentReference[oaicite:8]{index=8}
  • OEM-specified nut — ensures correct dimensions, thread, and compatibility with Graco assemblies. :contentReference[oaicite:9]{index=9}
  • Corrosion-resistant / durable material (as per supplier listing) — suitable for fluid-handling, pump housings, and industrial applications. :contentReference[oaicite:10]{index=10}

Why Use This Nut?

Using the OEM-specified 114850 Nut, Large-Flange Hex ensures that your equipment maintains factory-intended fastening integrity — with proper load distribution and sealing — especially under pressure, vibration or repeated maintenance cycles. Substituting with generic nuts may compromise sealing, cause uneven load on housings, or lead to premature wear or leaks. :contentReference[oaicite:11]{index=11}

Frequently Asked Questions

A “large-flange” nut has a built-in wide base (flange) that spreads the bearing load over a larger area — acting like a washer. This reduces stress on parts being fastened, helps prevent surface damage and loosening due to vibration or uneven load. :contentReference[oaicite:12]{index=12}

While a regular nut + washer might work mechanically, using the OEM large-flange nut ensures proper fit, thread tolerances, correct flange dimensions, and reduces risk of leaks or housing stress — especially in high-pressure pump applications. :contentReference[oaicite:13]{index=13}

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