QC Lubricants
7360 Milnor St. Philadelphia, PA 19136
(215) 333-4187
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With Extension (800) 887-2436
For Technical Assistance:
Dial Extension 203 for Stan Jakubowski
For Sales:
Dial Extension 211 for Lu Ann Quinn or 224 for Lindsay Romero
Email Lu Ann Quinn  ♦   Email Lindsay Romero


We actively supply a comprehensive line of MIL-SPEC  and commercial lubricants.

Mil-Specs MSDS
PDS and Other Docs PDS and Other Docs Boeing Specs McDonnell Douglas Specs

QC BLU DEF Diesel Exhaust Fluid

LHB Industries



hydraulic fluid

See the hydraulic fluid table below for more information on each specific hydraulic fluid and its associated mil-spec if applicable.
If you don't see what you are looking for, give us a call, our friendly and knowledgeable staff will be happy to assist you.

We are currently adding hydraulic fluid products by name, so check back often or give us a call for current products recommendations for your mil-spec hydraulic fluid needs. Products are listed below according to its mil-spec.

Also see MIL-SPEC Hydraulic Fluids Page

  Products Short Product Description
Shell Hydraulic Fluid Shell Tellus High Performance hydraulic oil High performance hydraulic fluids that use Shell’s unique patented technology to provide outstanding protection and performance.
Castrol Hydraulic Fluid Castrol AERO 35 YELLOW / RED
Castrol Aero 35 is a high quality, MIL-PRF-6083F based, ISO Grade 15 mineral hydraulic fluid
Castrol AERO 40 YELLOW Castrol AERO 40 RED Castrol Aero 40 is a special run, stoddard solvent calibrating fluid.   Castrol Aero 40 is a high quality,
MIL-PRF-5606 based, ISO Grade 15 mineral hydraulic fluid.
Brayco 599 Brayco 599 is designed for use as an additive for turbine engines and helicopter transmissions which use MIL-PRF-23699 lubricating oil.
Braycote 600 EF Nonflammable NLGI #2 grease, chemically inert, and thermally stable with low acute toxicity.
Brayco Micronic 600 EF Braycote 600 EF has excellent lubricating properties, good shear stability, and low acute toxicity.
Braycote 601 EF Castrol Braycote 601 EF's base oil (Castrol Brayco 815Z) is a perfluorinated polyether, with exceptional chemical resistance, extremely low volatility, and a wide temperature service range.
Braycote Micronic 601 EF Castrol  Braycote Micronic 601 EF's base oil (Castrol Brayco 815Z) is a perfluorinated polyether, with exceptional chemical resistance, extremely low volatility, and a wide temperature service range.
Braycote 602 EF Braycote 602 EF is nonflammable, does not use any chlorofluorocarbons during product manufacture, and is chemically inert with low acute toxicity.
Brayco 631 RP Castrol Braycote 631RP is a smooth, buttery, off-white NLGI #2 grease based upon a perfluoroether oil.
Brayco Micronic 756 Brayco Micronic 756 is a petroleum base, low viscosity, red colored ISO Grade 15 hydraulic fluid for aircraft, missile and ordnance use.
Brayco Micronic 776RP Brayco Micronic 776RP is a petroleum base, medium viscosity, light colored ISO Grade 22 hydraulic oil used in high performance hydraulic systems.
Brayco 815Z Castrol Brayco 815 Z is a clear water white perfluorinated polyether based fluid. Brayco 815Z is virtually inert, compatible with rocket propellants and oxidizers.
Brayco Micronic 815Z  

Also see MIL-SPEC Hydraulic Fluids Page

Hydraulic Fluid Information

Hydraulic fluids are a large group of liquids made of many kinds of chemicals.
Some of the most commonly used fluids are synthetic lubricants, petroleum oils, oil-water emulsions, and water-glycol mixtures. The main characteristics of hydraulic fluid are proper viscosity, high viscosity index, anti-wear protection, if applicable, proper oxidation, proper pour point, rust inhibition, good demulsibility, foaming resistance, and compatibility with seal materials. Anti-wear oils are used in compact, high-pressure, and capacity pumps that require extra lubrication protection. They are used in auto transmissions, power steering and brakes. They are used in forklift trucks, power steering and brakes. They are used in Tractors, bulldozers, aircraft and industrial machinery.
Some common types of hydraulic fluids are mineral oil, organophosphate ester, polyalphaolefin, castor oil, silicone, glycol esters and ethers.

Hydraulic fluids can contain a wide range of chemical compounds; oils, butanol, esters (e.g. phthalates, like DEHP, and adipates, like bis (2-ethylhexyl) adipate), polyalkylene glycols (PAG), phosphate esters (e.g. tributylphosphate), silicones, alkylated aromatic hydrocarbons, polyalphaolefins (PAO) (e.g. polyisobutenes), corrosion inhibitors, etc.

Farm tractors and marine dredging may benefit from using biodegradable hydraulic fluids based upon varieties of vegetable oil since they are environmentally sensitive, and when there is the risk of an oil spill from a ruptured line. These oils are available in their designated military specifications. Hydraulic systems will work efficiently if the specific hydraulic fluid has low compressibility.
Brake fluid is a type of hydraulic fluid with a high boiling point and low freezing point.
Some hydraulic fluids have an oily smell and others have no smell. Some are flammable and some are not.