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MIL-PRF-5606

MIL-PRF-5606 is a military specification for hydraulic fluid. It outlines the requirements for hydraulic fluid used in aircraft systems, particularly in military aircraft. MIL-PRF-5606 stands for MIL - military, PRF- performance requirements, 5606 - unique identification number for the spec. This spec is identified by NATO code H-515. Fluids which conform to this spec operate within a temperature range of -54 degrees to 135 degrees celsius.

MIL-PRF-5606 Product List

These products either meet or are approved to the MIL-PRF-5606 specification. Please consult the relevant product page and product description for the specific grade or size you intend to purchase to ensure it will be supplied with MIL-PRF-5606 paperwork.

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£9.30 excl VAT
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£105.67 excl VAT
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£3111.99 excl VAT
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£22.90 excl VAT
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Available to Back Order - 48 available in 174 days
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£376.90 excl VAT
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No Stock – Typically ships in 33 business days from order date
£336.68 excl VAT

Zip-Chem Sur-Prep MIL-PRF-5606 Landing Gear Wipe

Zip-Chem Sur-Prep 5606 Wipe is a lint free landing gear strut wipe saturated with MIL-PRF-5606 hydraulic fluid.

Available in two sizes, the product consists of a clear plastic pouch with an AMS approved towelette saturated with Mil-PRF-5606 hydraulic fluid. he wipes offer several key features that make them ideal for aircraft maintenance and landing gear applications. They are non-ozone depleting, non-VOC, and exhibit low toxicity. The hydraulic fluid in combination with the AMS-approved wiper, cleans the strut surface without damaging strut or elastomers. They are fully compatible with the various elastomers and substrates used in landing gear assemblies and efficiently removes contaminants during maintenance, assembly, and overhaul operations.

MIL-PRF-5606 Properties

Composition: MIL-PRF-5606 defines the composition of the hydraulic fluid, including the types and amounts of additives, lubricants, and other components. The fluid is typically petroleum-based and contains additives to enhance its lubricating and anti-corrosive properties.

Performance Requirements:
MIL-PRF-5606 hydraulic fluid must meet key performance requirements that the hydraulic fluid must meet. This includes characteristics such as viscosity, flash point, pour point, corrosion resistance, and compatibility with materials commonly found in aircraft hydraulic systems.

Uses: MIL-PRF-5606 hydraulic fluid is suitable for applications including automatic pilots, shock absorbers, brakes, flap-control mechanisms, missile hydraulic servo-controlled systems, and other hydraulic systems utilising synthetic sealing materials.

Interchangeability & Hydraulic Fluid Equivalents: It may also be used where compatibility with MIL-PRF-6083, MIL-PRF-46170, MIL-PRF-87257, and MIL-PRF-83282 hydraulic fluids is required, depending on the specific demands of the operational system.

Safety, Storage and Handling

MIL-PRF-5606 hydraulic fluid should be handled and stored in line with the product safety data sheet and manufacturer guidance. For best results, products should be kept in sealed containers and stored in a cool, dry environment to help preserve performance and reduce contamination risk. Users can also browse our hydraulic fluids range for related product options and pack sizes. Users should also review the relevant safety documentation before use in aerospace maintenance environments.

MIL-PRF-5606 Versions

MIL-PRF-5606J - The most recent version of the spec, established in 2018.

MIL-PRF-5606H - Previous version of the spec. First established in 2002 with 3 further amendments in 2003, 2005 and 2006.

MIL-H-5606A - Established in 1957, an early version of the spec. With MIL = Military, H = Hydraulic Oil, 5606 = Unique Identification Number, A = Version.

MIL-PRF-5606 product tin

MIL-PRF-5606 FAQ

What is the difference between MIL-H-5606 and MIL-PRF-5606?

MIL-H-5606 is an earlier designation, while MIL-PRF-5606 is the updated performance specification. In practical terms, MIL-PRF-5606 reflects the more current reference for hydraulic fluid used in applicable aircraft and aerospace systems. Users comparing older and current references can also consult our hydraulic fluid cross-reference guide for additional specification support.

What systems use MIL-PRF-5606 hydraulic fluid?

MIL-PRF-5606 hydraulic fluid is used in a range of aircraft hydraulic systems, including applications such as automatic pilots, shock absorbers, brakes, flap-control mechanisms, missile hydraulic servo-controlled systems, and other systems utilising synthetic sealing materials.