Graco 114028 Wing Nut

Graco 114028 Nut Wing: Precision Engineered Fastening for High-Pressure Coating Systems

The Graco 114028 Nut Wing serves as a critical fastening component within industrial line striping and spray finishing assemblies. Manufactured from premium corrosion-resistant steel alloys, this wing nut interfaces directly with booms, arms, and mounting brackets to secure nozzle assemblies and guide rails. Designed to work seamlessly with an airless sprayer framework, the 114028 element ensures consistent clamp force distribution across multiple operating cycles, preventing loosening under dynamic vibration loads typical of heavy-duty coating operations.

• Thread: 5⁄16"-18 UNC standard for universal mounting
• Material: Zinc-plated, high-tensile carbon steel for enhanced wear resistance
• Torque Rating: 25–30 in·lb optimal hand-tight assembly

Integration of the 114028 wing nut into line striping and spray recirculation loops directly supports uniform deposition of professional coatings. It maintains precise alignment between feed hoses, gun brackets, and spray guns, allowing operators to adjust tension quickly without specialized tools. The wing nut’s ergonomic lobes yield a consistent interface, which is essential when altering component configurations for different tip sizes, hose diameters, or manifold orientations in large-scale paving or parking lot marking systems.

In high-volume finish systems, the 114028 wing nut plays an instrumental role in sealing junction points that influence high-pressure filtration circuits. By ensuring a stable mechanical connection at filter housings and pump inlet fittings, this part contributes to minimizing pulsation and backflow issues. It supports system pressures up to 3,500 psi, aligning with heavy-duty line stripers and large-capacity coating pumps used for thermoplastic and epoxy-based formulations under demanding production schedules.

Compatibility extends across Graco’s LineLazer IV 200HS, LineLazer IV 3900, R300, 5900, and FieldLazer R300 platforms, where the wing nut secures adjustable arm extensions and guide brackets. Its symmetrical wing profile reduces stress concentration and prevents misalignment during repeated attachment cycles. Precision-machined threads synchronize perfectly with corresponding studs and bolts, ensuring that repeated assembly and disassembly do not compromise clamping strength or part integrity over time.

Performance benchmarks demonstrate that the 114028 wing nut sustains optimal clamping force during continuous operation, which directly enhances pump efficiency and improves overall system throughput. In fatigue testing, the zinc-plated steel construction exhibited minimal wear after 10,000 torque cycles. Furthermore, consistent axial loading preserves seal longevity of adjacent gaskets and O-ring assemblies, mitigating the risk of fluid bypass or external leakage in critical high-flow applications.

Design features include a counterbored hub for improved finger clearance, an aerodynamic wing profile to prevent accidental snagging on hoses or cables, and radiused lobes for comfortable manual adjustment. Finite element analysis (FEA) was applied during the development phase to optimize the wing geometry, reducing peak stress by 15% compared to conventional nuts. This engineering approach extends service life and ensures reliable performance in both indoor maintenance bays and outdoor field operations.

For maintenance professionals and field technicians, the 114028 Nut Wing offers straightforward inspection routines: visual assessment for thread wear, tactile check for torque retention, and corrosion evaluation on the zinc-plated surface. Periodic light lubrication with synthetic oils can further extend the life cycle, particularly in salt-laden or high-humidity environments. As a reusable OEM part, it supports rapid field replacement schedules without specialized tools, guaranteeing that striping crews and coating specialists can maintain consistent quality under tight production deadlines.