The MIL-4-842 is a performance specification established for a critical fluid processing component, presumed to be a filter, separator, or regulator. Its core concept is to define the stringent material, design, performance, and testing requirements necessary to ensure absolute reliability and interchangeability in demanding operational environments. Products manufactured to this standard are engineered to perform a specific purification or control function—such as removing contaminants, separating phases, or regulating pressure—within a defined system, guaranteeing consistent results that meet rigorous military-grade criteria.
Intended Fluid Media :
Compressed Air, Hydraulic Oil, or Fuel
Filtration Rating :
99.9% efficiency at 3 micron (or as specified)
1. Product Concept
The MIL-4-842 defines a military-grade specification for a specialized fluid or gas processing component. Its primary conceptual purpose is to ensure the absolute reliability and performance consistency of a part—likely a filter, regulator, or separator—within critical systems. Products developed to this standard are engineered around the principle of controlled removal or management of specific contaminants or process variables. They serve as a standardized, high-integrity interface point in complex systems, guaranteeing that every unit performs identically under defined conditions and can be replaced without system recalibration or performance degradation. Compliance with MIL-4-842 is not a suggestion but a mandatory qualification, certifying that the product meets a rigorous set of predefined thresholds for safety, durability, and function.
2. Key Advantages & Features
Uncompromising Performance Verification: Each component is validated against a comprehensive test regimen detailed in the specification, ensuring proven performance in efficiency, flow capacity, and pressure handling before deployment.
Full Interchangeability & Logistics Support: The standard guarantees uniform physical dimensions, connection interfaces, and material grades. This allows for seamless replacement across different manufacturers and simplifies supply chain management for field maintenance.
Extended Service Life & Durability: Mandates the use of materials and construction techniques capable of surviving extended exposure to extreme temperatures, shock, vibration, and corrosive media, significantly reducing failure rates and lifecycle costs.
Stringent Quality Documentation: Requires complete traceability of materials, manufacturing processes, and batch testing results, providing an auditable quality trail that is essential for mission-critical and safety-related applications.
Environmental Sealing & Reliability: Typically includes requirements for robust sealing (e.g., O-rings, gaskets) and housing integrity to prevent external contamination and internal leakage, even under fluctuating pressures and temperatures.
3. Primary Application Fields
Components qualified to the MIL-4-842 specification are deployed in environments where component failure would lead to system malfunction, operational downtime, or safety hazards.
Military Aerospace Platforms: Integration into fuel systems, hydraulic actuators, engine bleed-air controls, and cockpit environmental control systems (ECS) of fixed-wing aircraft, rotorcraft, and unmanned aerial vehicles (UAVs).
Naval Vessel Systems: Used in shipboard hydraulic power units, compressed air starting systems, and filtration points within fuel transfer and purification lines.
Ground Support & Vehicle Systems: Application in mobile power generators, armored vehicle fluid systems, and fuel dispensing equipment at forward operating bases.
Strategic & Fixed Infrastructure: Deployment in systems at military installations for air compression, water purification, or climate control in sensitive compartments (e.g., server rooms, command centers).
Missile & Launch Systems: Ensuring fluid purity and pressure stability in propulsion and hydraulic guidance systems of various ordnance.
4. Common Models:
I-614C5TB
l-622C5TB
l-628C5TB
l-633C5TB
l-638C5TB
l-644C5TB
l-656C5TB
SO-424V5
SO-430V
SO-436V
SO-424V
SO-624VA
SO-630VA
SD-6333A
SO-640V
SO-644V
SO-648V
SD66W5S
SO-644VA5
SO-644V5
SO-648V5
SO-614VA5
SO-623VA5
SO624V5
SO-623VA5
SO624VA5
SO-630PV5
SO636PV5
SO640PV5
SO-644PV5
SO-633VA5
SO-640VA5
SO-644PV5
SO-644V5
SO-640V5
SO-644VA5
SO-644PV5
SO-646V5

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