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Graco 162702 Nut Packing

High-quality packing nut that secures packings and prevents leaks in pump rod and shaft assemblies.

  • Securely compresses packing sets
  • Resists loosening under vibration
  • OEM thread fit for proper installation

$74
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Compatible Machines

  • Graco Pump Rod and Packing Assemblies
  • Graco High-Pressure Plunger Pumps

Graco 162702 Nut Packing – OEM Fastening for Packing Sets

The Graco 162702 Nut Packing secures packing elements and maintains correct compression to prevent leakage on reciprocating shafts and plungers.

  • Precise thread fit ensures even compression
  • Designed to resist vibrational loosening
  • Matches OEM packing dimensions for reliable replacement

Technical Overview

Part Number 162702
Function Packing compression and retention

Installation & Usage Tips

  • Hand-start threads and then torque to OEM recommended values to avoid cross-threading.
  • Check packing compression periodically and re-torque if necessary following warm-up cycles.
  • Replace the nut if threads are damaged or if it shows signs of galling.

Frequently Asked Questions

Tighten to OEM torque specs. Over-tightening can damage packing; under-tightening causes leaks. If unsure, tighten gradually and test for leaks under low pressure.

Thread sealants are generally unnecessary for packing nuts and may interfere with future maintenance. Use only if specified by OEM guidance.

Vibration, thermal cycling, and improper initial torque are common causes. Use lock washers or retainer features where recommended to prevent loosening.

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