Fuel and Lubricant Testing

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MIL-PRF-6083G - Petroleum Base Hydraulic Fluid for Preservation and Operation

We perform lubricants testing by military specification MIL-PRF-6083, which covers the requirements for a rust inhibited petroleum base hydraulic fluid that is intended for use as an operational fluid at high temperatures. This military specification covers one grade of rust inhibited petroleum base hydraulic fluid that is identified by Military Symbol OHT and NATO Symbol C-635. The hydraulic fluid is intended for use as an operational fluid from -54 C to 135 C where corrosion protection is required and it has been determined that MIL-PRF-46170 (FRH) hydraulic fluid cannot be used. This includes use in recoil mechanisms and hydraulic systems for rotating weapons or aiming devices of tactical and support ordnance equipment, except for combat armored vehicles/equipment which require FRH. The hydraulic fluid is also used as a preservative fluid for aircraft hydraulic systems and components where MIL-H-5606 (OHA) or MIL-PRF-87257 is used as an operational fluid.

To read or download this specification, click HERE. This specification supersedes military specification MIL-H-6083.

The following is a list of tests required by Specification MIL-PRF-6083G. Some of these tests are customized for this exact specification. Alcor Petrolab and Phoenix Chemical Laboratory specialize in unusual and custom testing, and our testing capabilities are continuing to expand; contact one of our laboratories today to discuss the exact testing you need. To see more information about one of these tests, click on the test method number.