The Graco 100111 Nut is an essential component designed to maintain optimal performance and safety of your spray system. Crafted from durable materials, it ensures a tight seal under the demanding conditions of an graco airless paint sprayer hose, providing exceptional reliability during projects that require professional coatings. This lock nut is easy to install, making it ideal for contractors who depend on consistency and speed. When paired with proper high-pressure filtration setups, it prevents leaks and keeps your airless sprayer running smoothly.
Compatible with a wide range of Graco equipment, this nut enhances the performance of Graco Fine Finish Sprayers by maintaining stable pressures and preventing component wear. Its precision-engineered fit supports professional-grade applications, ensuring smooth delivery of coatings. Upgrade your maintenance kit with this robust part to experience reliable operation and consistent results every time.
$9.43The Graco 100111 lock nut plays a critical role in securing pump assemblies of airless sprayer platforms. Designed for professional applications, the hexagonal lock nut features M12×1.75 threading optimized for high-pressure fluid circuits. In demanding sprayer environments, this part ensures consistent alignment of fluid passages, reducing occlusion risk and maintaining fluid pressure. Engineered to withstand abrasive or solvent-based professional coatings, it contributes to system integrity. The precision milling promotes stable coupling under repeated cycling, critical for reliable spray performance in high-pressure filtration systems. Its uniform construction and controlled hardness provide resistance to mechanical fatigue during continuous operation.
The six-point hex profile of the Graco 100111 ensures precise wrench engagement, enabling assembly in confined spaces. Precision-machined surfaces achieve tight tolerances within ±0.02 mm, ensuring leak-tight interfaces when mated with O-rings. This nut integrates seamlessly into various manifolds and housing flanges, making it a versatile hub for airless paint sprayer attachments. The chamfered entry reduces galling during installation, while a hardness rating of RC45–50 provides optimal wear resistance under cyclic loading. Its compatibility with modular sprayer heads further enhances system versatility.
Crafted from 304 stainless steel or hardened alloy, the Graco 100111 nut resists corrosion and mechanical fatigue. Passivation enhances surface finish and solvent resistance. The grade exhibits yield strength above 330 MPa, sustaining torque loads up to 150 Nm. Burr-free edges minimize particulate generation, preserving graco spray gun accessories and internal pump components. Designers pair this nut with advanced seal materials, ensuring compatibility across a spectrum of chemical formulations and temperature ranges from −20 °C to 120 °C.
Performance testing shows that the Graco 100111 nut exhibits minimal torque relaxation over extended cycles, boosting pump efficiency by maintaining constant preload on seals. Empirical data indicates less than 5% torque deviation after 10,000 cycles at 5 bar back-pressure. Such retention is vital for precision dosing and ultra-fine atomization. The uniform clamping force reduces micro-leak paths, optimizing fluid flow and output consistency. In high-speed pump assemblies, the nut’s rigidity enhances system responsiveness, enabling dynamic spray control.
An integral aspect of the 100111 nut system is its compatibility with PTFE-backed O-rings, engineered for extended service life. The nut’s internal counterbore delivers uniform pressure distribution, mitigating extrusion under surge conditions. Optimized groove geometry enhances contact area, preventing seal displacement in high-pressure scenarios. Trials for automotive coatings show that proper compression, enabled by precise nut dimensions, can improve seal longevity by over 30% compared to generic fasteners, reducing maintenance intervals and boosting uptime.
Proper installation of the Graco 100111 requires adherence to specified torque ranges to avoid overstress or insufficient preload. Recommended assembly torque is 100–120 Nm for stainless steel and up to 140 Nm for hardened alloy. Use calibrated torque wrenches and lubricate threads with anti-seize compounds to prevent galling. Confirm axial alignment before final torque application to avoid cross-threading. This protocol maintains concentric mating surfaces, minimizing pulsation and preserving fluid path integrity in advanced sprayer configurations.
The Graco 100111 nut finds application across sectors demanding precise fluid handling, including industrial painting, protective coatings, and specialty sealants. In rig-mounted airless sprayer setups, it anchors pressure regulators and filter housings, ensuring stable delivery of fine atomized streams for automotive or marine professional coatings. Its resilience under cyclic loading and solvent exposure makes it ideal for high-abrasion materials like cementitious coatings. By securing pump-to-hose interfaces, it supports consistent spray patterns and uniform film thickness in large-scale coating projects. Project engineers value this nut for its repeatable performance under variable ambient conditions.
Routine inspection of the Graco 100111 nut involves checking for thread wear, surface corrosion, and seal compression. If degradation appears, replacement with genuine Graco parts only is imperative to maintain design specifications and performance. Avoid substitute fasteners that deviate in metallurgy or thread profile, which can compromise fluid containment and pressure balance. When paired with original Graco pumps and manifolds, the nut ensures system harmony, simplifying maintenance and extending service cycles in rigorous industrial spraying operations.
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