QC Lubricants
7360 Milnor St. Philadelphia, PA 19136
(215) 333-4187
Direct Line

Toll Free
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.

Product Shelf Life
PDS and Other Docs

QC BLU DEF Disel Exhaust Fluid





Supersedes 520A

Status: Canceled

Superceded by: MIL-C-62218

This specification covers an asphalt compound suitable for
use as a protective coating and sound deadener on the underbody parts of
automotive equipment.



The underbody coating covered by this specific~tion
is intended for use in one thick coat (1/8 inch) on the undersid~ of hoods,
fenders, floors, etc. of automobiles to deaden noise, to act as a seal
against fumes, and to protect the metal from corrosion.
Royco 756


The compound may be applied with either brush or power spray (see
Directions for Use, paragraph 5.4.3). It is supplied ready for use, but may
be thinned if desired with a small amount of mineral spirits conforming to

Metal parts of vehicles should be clean and dry, free from rust, oil,
and grease before applying .the compound.

MIL-PRF-5606H Intended use

The hydraulic fluid covered by this specification is intended for use in automatic pilots, shock absorbers, brakes, flap-control mechanisms, missile hydraulic servo-controlled systems, and other hydraulic systems which use synthetic sealing material.

MIL-PRF-5606H Storage conditions

Prior to use in the intended equipment, the product may be stored under conditions of covered or uncovered storage in geographic areas that range in temperatures from -57C to +49C.

MIL-PRF-5606H Interchangeability

This fluid is completely compatible with:MIL-PRF-6083, MIL-PRF-46170 Type I,
MIL-PRF-87257, and MIL-PRF-83282 hydraulic fluids. It may be interchangeable with these fluids for some applications. The selection of the fluids to be used depends on the requirements of the operational system.

WARNING: This fluid may contain tricresyl phosphate (TCP) which may be absorbed through the skin and produce paralysis if taken internally. Appropriate protective measures should be taken to avoid such exposures. Decontaminate containers before reuse.

MIL-PRF-5606H Handling and safety precautions

Personnel should wear appropriate, impervious clothing when handling the product to prevent repeated or prolonged skin contact. Local appraisal is required to determine exact health and safety implications and to prescribe precise application of protective clothing. If skin or clothing becomes moistened with the product, personnel should promptly wash with soap or mild detergent and water. Respirators are not required unless there is an inhalation exposure to mists. Personnel should wear protective clothing when using the product and when cleaning up spills.

MIL-PRF-5606H Disposal

Waste fluid

The accumulated waste fluid should be disposed of through a waste oil recovery program unless prohibited by local law. Otherwise, the product should be disposed of in accordance with local law and regulations promulgated by the U.S. Environmental Protection Agency under Public Law 94-580, Resource Conservation and Recovery Act of 1976.

MIL-PRF-5606H Depot-type operations

Additionally, the used product, which has been drained from the hydraulic systems, should be combined with unused but contaminated fluid from partially full containers and then recycled. Fluid may be purified and reused in accordance with T.O. 42B2-1-3.

MIL-PRF-5606H Container disposal

Depending upon local regulations, tops from one-time-use containers may be discarded with ordinary refuse. Containers should be made as empty as possible using gravity draining, after which they are to be crushed and buried in a permitted sanitary landfill or incinerated with general refuse. No special decontamination procedures are required for empty containers or their lids.

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