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Graco 120199 Hex Head Screw Cap 9/16 x 7-1/2

$145.00
Available to Order
Part #: 120199

The Graco 120199 Screw Cap HH 9/16 x 7-1/2 is a precision-engineered high-pressure cap designed for industrial pump assemblies. Key benefits include:

  • Compatible Machines: Industrial Airless Sprayers, Reciprocating Piston Pumps, Diaphragm Pump Assemblies, High-Pressure Filtration Systems
  • Durable Material: High-strength steel alloy with protective plating
  • High Pressure: Rated for continuous operation up to 5,000 psi
  • Precision Threads: 9/16"-18 UNF for secure sealing and accurate torque
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Compatible Machines for Graco 120199 Screw Cap HH 9/16 x 7-1/2

  • Graco Industrial Airless Sprayers
  • Graco Reciprocating Piston Pumps
  • Graco Diaphragm Pump Assemblies
  • Graco High-Pressure Filtration Systems

Graco 120199 Screw Cap HH – Durable High-Pressure Seal

The Graco 120199 Screw Cap HH 9/16 x 7-1/2 is designed for industrial pump assemblies and high-pressure airless sprayers. Its precision-engineered threads and hex head allow accurate torque application, ensuring a secure seal and optimal pump performance.

Key Features

  • Thread Interface: 9/16"-18 UNF class 2A/2B for tight engagement
  • Length: 7.50" barrel for correct manifold spacing
  • Material: High-strength steel alloy with trivalent chromium or zinc-nickel plating
  • High Pressure: Certified for continuous operation up to 5,000 psi
  • Supports O-ring and backup ring sealing for consistent performance
  • Precision CNC machining ensures thread and face concentricity within 0.0003"

Specifications

Material High-strength steel alloy with protective plating
Thread Standard 9/16"-18 UNF class 2A/2B
Barrel Length 7.50"
Operating Pressure Up to 5,000 psi
Torque Specification 75–85 ft-lb
Finish Trivalent chromium or zinc-nickel plating

Installation & Maintenance

Clean threads and pump receptacle before installation. Apply a compatible thread lubricant, hand-tighten, and torque in stages to seat the gasket. Inspect regularly for corrosion or wear, and replace O-ring and backup ring per OEM guidelines.

Frequently Asked Questions

Compatible with Graco Industrial Airless Sprayers, Reciprocating Piston Pumps, Diaphragm Pump Assemblies, and High-Pressure Filtration Systems.

Constructed from high-strength steel alloy with trivalent chromium or zinc-nickel plating for corrosion resistance.

Recommended torque is 75–85 ft-lb, and the screw cap is certified for continuous operation up to 5,000 psi.

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