1、MIL-STD-7179A 10 August 2009 SUPERSEDING MIL-STD-7 179 30 September 1997 DEPARTMENT OF DEFENSE STANDARD PRACTICE FINISHES, COATINGS, AND SEALANTS, FOR THE PROTECTION OF AEROSPACE WEAPONS SYSTEMS DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited AMSC 9063 AREA MFFP Prov
2、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORD 1. This standard is approved for use by all Departments and Agencies of the Department of Defense OD). 2. This standard covers minimum requirements for methods and materials to be used for protecti
3、ve surface treatments of aerospace weapons systems (see 3.4 and 6.1). 3. This standard identifies material specifications that are required for use as finishes, protective coatings, and sealants in aerospace weapons systems. When an alternate material or process is desired, approval of the procuring
4、 activity is required. 4. Comments, suggestions, or questions should be addressed to: Commanding Officer, Naval Air Warfare Center Aircraft Division, Code 4L8000B120-3, Highway 547, Lakehurst, NJ 08733- 5100, or email to michael.sikoranavy.mil. Since contact information can change, it may be necessa
5、ry to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dfa.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-7179A CONTENTS PARAGRAPH pAGE . . FOREWORD 11 1. SCOPE 1 1.1 Scope 1 2. APPLI
6、CABLE DOCUMENTS . 1 2.1 General . 1 2.2 Government documents 1 2.2.1 Specifications,standards, and handbooks . 1 . . 2.3 Non-Government publlcatlons . 2 2.4 Order of precedence . 3 3. DEFINITIONS . 3.1 Exterior surface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Extreme c
7、onditi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Fayed surface 3.4 Weapons system . 3.5 Frequent RemovaI.plrDisasse.mbIr. 4 GENERAL =OUIREMENTS 4 General . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . Special treatm
8、ents 4 Cross references . 4 Alternate materials . 5 Non-standard coatings and finishes 5 General precautions 5 Metal particles . 5 Use of abrasive material . . . . . . . . . . . . . . . . 5 Welding, brazing, and soldering 5 5. DETAILED REQUIREMENTS 6 5.1 Protective finish system requir . . . . . . .
9、 . . . . . . 5.1.1 Surface treatment . . . 5.1.2 Appllcatlon of organic finishe 5.1.3 Interior surfaces 6 5.1.4 Exterior surface 5.1.5 5.2 5.2.1 . . 5.2.1.1 Surfaces of slmllar metals 8 5.2.1.1 .I Defect filling 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
10、rom IHS-,-,-CONTENTS PARAGRAPH . Surfaces of dsslmllar metals 8 Sealing . 9 Slip fits . 9 Press fits 10 . Cut edges 10 Functional surfaces 10 . Control cables and control chains 10 Closely coiled springs 10 . . Parts m 011 or grease 10 . Metal tanks . 11 Temporary and auxiliary fuel tank . 11 Welded
11、 fuel tanks (including 11 Integral and riveted fuel tanks 11 Lubricating oil and hydraulic fluid tanks . 11 Miscellaneous aluminum alloy tanks Tubing Nonstructural tubin . Oxygen tubing Aluminum tubing Protection of tubin Structural tubing 13 Structural carbon steel tubing . 13 Structural aluminum-a
12、lloy tubing 14 Structural copper alloy, corrosion-resistant alloy and heat-resistant alloy tubing . 14 Mechanical attachment . 14 Attaching parts and fastener 14 . General finish 14 Close tolerance bolts 15 Adjustable parts 15 Touch-UP 15 . Washers 15 Areas subjected to corrosive 15 Electrical pafls
13、 15 Connections . 15 Conduit and boxes 16 Electrical connectors pins and sockets 16 . . Antennas and Static Discharge 16 . Surfaces and components exposed to high temperatures 16 16 17 17 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5.2.19 Metal l
14、eading edges 17 5.2.20 Helicopter rotor-blade leading edges . 17 5.2.21 Rubber (natural and synthetic) . 17 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.1 6.2 Acquisition requirements . 6.3 6.4 Subject term (key word)
15、 listing 18 6.5 Changes from previous issue 18 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1. SCOPE 1.1 w. This standard establishes minimum requirements to be considered for finishes, protective coatings, and sealants used in the protection of a
16、erospace weapons systems (see 3.4 and 6.1). 2. APPLICABLE DOCUMENTS 2.1 General. Documents listed in this section are specified in sections 3, 4, and 5 of this standard. This section does not include documents cited in other sections of this standard or recommended for additional information or as e
17、xamples. While every effort has been made to ensure completeness of this list, document users are cautioned that they must meet all specified documents cited in sections 3,4, and 5 of this standard, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications. standards and handboo
18、ks. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. FEDERAL SPECIFICATIONS TT-P-2760 - Primer Coating: Polyurethane, Elastomeric, High So
19、lids FEDERAL STANDARDS FED-STD-595 - Colors Used in Government Procurement DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-F-I 8264 MIL-PRF-22750 MIL-PRF-23377 - Resin-Coating, Permanent, For Engine Components and Metal Parts - Surface Treatments and Inorganic Coatings for Metal Surfaces of Weapons Systems
20、 - Coating, Permanent Resin; Process For Application of, to Aircraft Parts - Chemical Conversion Coatings on Aluminum and Aluminum Alloys - Anodic Coatings, For Aluminum and Aluminum Alloys - Colors, Interior, Aircraft, Requirements for - Corrosion Preventive Compound, Petrolatum, Hot Application -
21、Corrosion Preventive Compound, Solvent Cutback, Cold- Application - Finishes, Organic, Weapons Systems, Application and Control of - Coating, Epoxy, High Solids - Primer Coatings: Epoxy, High Solids Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- Lu
22、bricant, Solid Film, Air-Cured, Corrosion Inhibiting, NATO Code Number S-749 - Lubricating Oil, General Purpose, Preservative (Water-Displacing, Low Temperature) - Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting - Coating, Aliphatic Polyurethane, Single Component, Chemical Agent Resistant -
23、Chemical Agent Resistant Coating (CARC) System Application Procedures and Quality Control Inspection - Coating, Water Dispersible Aliphatic Polyurethane, Chemical Agent Resistant - Corrosion Preventive Compounds, Water Displacing, Ultra-Thin Film - Sealing and Coating Compound, Corrosion Inhibitive
24、Chemical Conversion Materials for Coating Aluminum and Aluminum Alloys - Thread Compound, Antiseize, Molybdenum Disulfide-Petrolatum - Corrosion Preventive Compound, Water Displacing, Clear (Amlguard) - Coating: Polyurethane, Aircraft and Support Equipment MIL-C-85322 - Coating, Elastomeric, Polyure
25、thane, Rain-Erosion MIL-PRF-85582 - Primer Coatings: Epoxy, Waterborne DEPARTMENT OF DEFENSE HANDBOOKS MIL-HDBK-83377 - Adhesive Bonding (structural) for Aerospace and Other Systems, Requirements for DEPARTMENT OF DEFENSE STANDARDS MIL-STD-464 - Electromagnetic Environmental Effects, Requirements fo
26、r Systems MIL-STD-889 - Dissimilar Metals MIL-STD-2161 - Paint Schemes and Exterior Markings for U.S. Navy and Marine Corps Aircraft (Copies of these documents are available online at http:llassist.daps.dla.millquicksearchi or from the Standardization Document Order Desk, 700 Robbins Avenue, Buildin
27、g 4D, Philadelphia, PA 191 1 1-5094.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. Provided by IHSNot for ResaleNo repro
28、duction or networking permitted without license from IHS-,-,-SAE INTERNATIONAL - Sealing Compound, Polysulfide Rubber, Fuel Resistant, Nonchromated Corrosion Inhibiting for Intermittent Use to 360F (1 82C) - Sealing Compound, Integral Fuel Tanks And General Purpose, Intermittent Use To 360F (1 82C)
29、DoD Adopted. - Sealing Compound, Polythioether Rubber Fast Curing for Integral Fuel Tanks and General Purpose, Intermittent Use to 400 Degrees F (204 Degrees C) DoD Adopted. Sealing Compound, Polysulfide Synthetic Rubber for Integral Fuel Tank and Fuel Cell Cavities, Low Density for Intermittent Use
30、 to 360F (182OC) DoD Adopted. - Materials, Coating, Fluorocarbon(FKM),Elastomeric DoD Adopted. - Magnesium Alloy, Processes for Pretreatment and Prevention of Corrosion on DoD Adopted. Sealing Compound, Topcoat, Fuel Tank, Buna-N Type DoD Adopted. - Sealing compound, Temperature Resistant, Integral
31、Fuel Tanks and Fuel Cell Cavities, High Adhesion DoD Adopted. - Coatings, Corrosion Preventive, For Aircraft Integral Fuel Tanks DoD Adopted. - Coatings, Polyurethane, Rain Erosion Resistant For Exterior Aircraft And Missile Plastic Parts DoD Adopted. - Coating System, Polyurethane, Non-Yellowing, W
32、hite, Rain Erosion Resistant, Thermally Reflective DoD Adopted. (Copies of these documents are available online at http:lISAE.org or from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a con
33、flict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption bas been obtained. 3. DEFINITIONS 3.1 Exterior surfaces. All surfaces of a we
34、apons system normally exposed to an external environment during flight or on the ground, and all interior surfaces that may become regularly wetted with water or other corrosive fluid are considered exterior surfaces. These surfaces include, but are not limited to, wheels and landing gear, wheel wel
35、ls and their fairings, dive brakes, wing flaps, wing-fold areas, battery compartments, and bilge areas on aircraft with latrines. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 Extreme conditions. Extreme conditions include, but are not limited
36、to, exhaust trails, gun-blast surfaces, rocket-blast areas, leading edges, areas that may trap or be exposed to fumes from exhaust, guns or rockets, or surfaces subjected to temperatures above 250 OF (121 “C) as the result of thermal radiation, aerodynamic heating, or other sources of heat. 3.3 Fave
37、d surface. The term “fayed surface“ means two or more surfaces are joined or fitted closely or tightly together. 3.4 Weapons system. All types of aircraft, manned and unmanned, and missiles are considered weapons systems. 3.5 Freauent Removal or Disassembly. With regard to fasteners, frequent remova
38、l is defined as either removal or disassembly which occurs, or is anticipated to occur, within a maximum of six (6) months. 4. GENERAL REQUIREMENTS 4.1 General. This section establishes the methods of corrosion prevention required to ensure that aerospace weapons systems (see 3.4), including those e
39、xposed to extreme conditions (see 3.2), are protected by coatings and finishes proven suitable for the intended environment. 4.2 Exceutions. Unless specifically prescribed by a particular item andlor accessory specification or drawing, this standard is not applicable to propellers, power plants, ins
40、truments, electronic enclosures or chassis, or contractor purchased accessories, such as electric motors, generators, switches, hydraulic valves, and similar parts. Contractors are not normally required to refinish such equipment or accessories, provided the color and finish systems are acceptable t
41、o the procuring activity or its agent. 4.3 Contractor-ureuared finish suecification. A finish specification defining the protective finish system, including cleaning and surface treatments of the item being purchased shall be developed. The finish specification is required in accordance with the DoD
42、 Corrosion Prevention and Control Policy of 12 November 2003. Specific guidance may be found in the DoD Corrosion Prevention and Control Planning Guidebook, Spiral 3, of September 2007. Any deviations from the requirements specified herein shall be identified and supported with technical data and in
43、formation. In areas where the coating thickness requirement cannot be met (see 5.1.5), the finish specification shall indicate the specific areas of variation. 4.3.1 Special Treatments. A detailed parts list of the weapons system is not required in the finish specification; however, sufficient examp
44、les shall be included so that any part of the weapon system may be properly classified as to its detailed protective treatment. All parts for which the exact treatment may be in doubt, all of the areas identified in 4.1 requiring special treatment, and all parts or assemblies with design features no
45、ted in their specifications to require maximum corrosion preventive treatment shall be included in the finish specification. 4.3.2 Cross references. When the contractor-prepared finish specification references manufacturers materia, and or other finish process specifications, or other documents, a c
46、ross Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-reference shall be prepared as part of the specification indicating their equivalence to existing Government and non-Government specifications and standards. Copies of any originated referenced doc
47、uments shall be required with the proposed finish specification. 4.3.3 Alternate materials. Where there is a choice of coatings and/or finish materials or processes herein, the finish specification shall be tailored to identify only those intended to be used. Alternate materials shall not be used wi
48、thout the written approval of the procuring activity. 4.3.4 Non-standard coatings and finishes. The contractor prepared finish specification (see 4.3) shall identify any proposed deviations from, or additions to the requirements specified herein by marking with an asterisk. These shall be considered
49、 non-standard. The affected materials or processes shall be replaced with coating or finishing systems that have been proven suitable for the intended environment. Environmentally driven usage of organic primers containing non-chromate corrosion inhibitors is one example where the product must have been proven to have accept
