AIA/NAS 4160-2013 pdf download PLATING, CADMIUM, ELECTRODEPOSITED, FOR FASTENERS
1 . SCOPE
1 .1 Purpose. This specification defines the procedures to be followed for the electrodeposited cadmium plating of fasteners, fastening systems and other related hardware primarily as a corrosion protective plating.
1 .2 Classification. The plating shall be of the following types and classes as specified.
1 .2.1 Types. Types refer to post plating treatments or lack thereof.
Type I – As plated
Type II – Supplemental chromate treatment
Type III – Supplemental phosphate treatment
1 .2.2 Classes. Classes refer to the thickness of the cadmium plating (reference 3.4.1 ).
Class 1 – .0005 inches minimum thickness (1 3 micrometers)
Class 2 – .0003 inches minimum thickness (8 micrometers)
Class 3 – .0002 inches minimum thickness (5 micrometers)
1 .3 Recommendations for improvement or correction of this specification should be directed to the Aerospace Industries Association.
2. APPLICABLE DOCUMENTS
2.1 Government Documents
2.1 .1 Specifications. The following specifications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2).
Federal
TT-C-490 Cleaning Methods and Pretreatment of Ferrous Surfaces for Organic Coatings Military
MIL-S-5002 Surface Treatment and Metallic Coatings for Metal Surfaces of Weapons Systems
Copies can be obtained from the Department of Defense Single Stock Point (DODSSP). http://dodssp.daps.dla.mil
2.2 Other Publications. The following documents form a part of this standard to the extent specified herein. Unless otherwise indicated, the issues of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. The issues of documents which have not been adopted shall be those in effect on the date of the cited DoDISS.
ASTM B504 Measurement of the Thickness of Metallic Coatings by the Coulometric Method
ASTM B555 Guide for Measurement of Electrodeposited Metallic Coating Thickness by the Dropping Test
ASTM B567 Measurement of Coating Thickness by the Beta Backscatter Method
ASTM B568 Measurement of Coating Thickness by X-Ray Spectrometry
ASTM E1444 Standard Practice for Magnetic Particle Examination
Copies can be obtained from ASTM International, 1 00 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1 9428-2959. www.astm.org
Aerospace Industries Association
NAS531 Charts, Rockwell Hardness
NASM1 31 2-1 Fasteners, Test Methods, Method 1 , Salt Spray
NASM1 31 2-5 Fasteners, Test Methods, Method 5, Stress Durability
NASM1 31 2-1 2 Fasteners, Test Methods, Method 1 2, Thickness of Metallic Coatings
NASM1 31 2-1 4 Fasteners, Test Methods, Method 1 4, Stress Durability, Internally Threaded Fasteners
Copies can be obtained from the Aerospace Industries Association, 1 000 Wilson Blvd., Suite 1 700, Arlington, VA 22209. www.aia-aerospace.org
SAE International
AMS2750 Pyrometry
AMS2759 Heat Treatment of Steel Parts, General Requirements
AMS641 4 Steel Bars, Forgings and Tubing (SAE 4340)
AMS641 5 Steel Bars, Forgings and Tubing (SAE 4340)
Copies can be obtained from SAE International, 400 Commonwealth Dr., Warrendale, PA 1 5096-0001 . www.sae.org