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Graco 104143 Nut Crown

The Graco 104143 Nut, Crown (5/8-18) secures hydraulic motor tie-rods on Viscount II assemblies. Use genuine hardware for proper clamping and alignment.

  • Part No.: 104143
  • Description: Nut, Crown, 5/8-18 UNF
  • Fits Assemblies: Viscount II hydraulic motor models 217022, 217338, 235345, 262818
  • Function: Secures tie-rods; maintains motor stack clamp load
  • Typical Torque: 70–80 ft-lb (95–108 N·m)

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Compatible Machines / Assemblies

The Graco 104143 Nut, Crown (5/8-18) is used on the tie-rods of the Viscount II hydraulic motor assembly. Below are the confirmed assemblies that specify this nut.

  • Viscount II Hydraulic Motor Model 217022 (uses 104143 crown nuts)
  • Viscount II Hydraulic Motor Model 217338 (uses 104143 crown nuts)
  • Viscount II Hydraulic Motor Model 235345 (uses 104143 crown nuts)
  • Viscount II Hydraulic Motor Model 262818 (uses 104143 crown nuts)

Product Overview

The Graco 104143 Nut, Crown 5/8-18 secures hydraulic motor tie-rods, helping maintain correct clamping force on the motor stack. Always replace damaged or rounded nuts to ensure proper torque retention and motor alignment.

Key Specifications

Attribute Detail
Part Number 104143
Name Nut, Crown
Thread 5/8-18 (UNF)
Assembly Location Tie-rods of Viscount II hydraulic motor assembly
Typical Torque 70–80 ft-lb (95–108 N·m) when specified for the above Viscount II motor models

Installation Notes

  • Inspect tie-rod threads and nut seats; clean before assembly.
  • Install each Nut, Crown evenly across tie-rods to draw the motor stack down squarely.
  • Torque to the specified range (see above) where applicable to your motor model.
  • Re-torque after initial run-in if recommended by your service manual.

Frequently Asked Questions

It secures the hydraulic motor tie-rods on Viscount II assemblies, maintaining clamp load and stack alignment under operating pressure and temperature.

It is specified for Viscount II hydraulic motor assemblies: 217022, 217338, 235345, and 262818. If your sprayer is built with one of these motors, the nut applies.

Many Viscount II service procedures specify 70–80 ft-lb (95–108 N·m) for these crown nuts on the listed motor models. Always follow the exact torque noted in your service manual for your motor series.

Yes—use genuine Graco hardware to maintain proper fit, material strength, and serviceability on hydraulic motor assemblies.

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