1.3 PIN. The PIN consists of the letter M, the basic specification number, a dash, a letter hook size, a
dash, and a letter for finish.
M 13220 - A - F
Finish & metal
Basic specification number
2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this
specification. This section does not include documents cited in other sections of this specification or
recommended of for additional information or as examples. While every effort has been made to ensure
the completeness of this list, document users are cautioned that they must meet all specified
requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed.
2.2 Government documents.
2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and
handbooks 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.
DEPARTMENT OF DEFENSE SPECIFICATIONS
Castings, Ferrous, Austenitic Manganese (Hadfield Manganese),
(Low Magnetic Permeability And/Or Wear Resistant)
(Copies of these documents are available online at http://assist.daps.dla.mil/quicksearch/ or
http://assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue,
Building 4D, Philadelphia, PA 19111-5094.)
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.
- Austenitic Manganese-Steel Castings
- Standard Specification for Wrought Carbon Steel Wheels
- Coating, Aluminum, High Purity
- Standard Specification for Age-Hardening Stainless Steel Forgings
- Standard Specification for Normalized High-Strength Low-Alloy
Structural Steel Plates
- Standard Practice for Operating Salt Spray (Fog) Apparatus
(Copies of these documents are available online at http://www.astm.org or from ASTM International,
100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA, 19428-2959.)