The H-798 High-Pressure Service Valve (interchangeable with Schrader 798, Haltec H-798, and Dill 9019C) is a premium-grade, heavy-duty valve designed specifically for high-pressure nitrogen charging. Engineered to meet strict military and aerospace standards, this valve ensures a leak-proof seal and reliable performance under extreme pressures, making it the industry standard for high-performance suspension systems and hydraulic machinery.

Key Features & Technical Specifications

• Pressure Rating: Engineered for high-pressure applications with a maximum working pressure of 5,000 PSI.
• Premium Construction: Manufactured from high-strength stainless steel to deliver maximum corrosion resistance, durability, and a long service life under harsh conditions.
• Mounting Thread: Features a precision-engineered ½”-20 UNJF-3A thread for a secure, airtight fit into the shock or accumulator body.
• Compliance Standards: Fully conforms to military specification MS-28889-2 (as well as AN/MS M-6164-2) for guaranteed safety and quality assurance.
• Core Function: Equipped with a standard high-pressure core and a secure hex cap to prevent debris contamination and pressure loss.

• Off-Road Racing: Ideal for charging high-end nitrogen-filled coilover shocks, bypass shocks, and bump stops.
• Aviation: Widely used in aircraft landing gear shock struts and landing gear pneumatic systems.
• Industrial Hydraulics: Perfect for heavy-duty hydraulic pressure accumulators and specialized high-pressure air/gas tanks.

• Specifications