MIL-DTL-12560K (MR)
1.2.2 Class 2. Wrought armor plate with an ordered thickness of 0.098 to 2.000 inches (2.5 to
50.8mm) which is heat treated to develop maximum resistance to shock (see 6.1.2).
1.2.3 Class 3. Wrought armor plate with an ordered thickness of 0.250 to 12.000 inches (6.35 to
304.8 mm) which is heat treated to develop specific hardness and impact values for evaluation of
armor-defeating ammunition only. This class of armor is not intended for use in combat-vehicles.
To meet the thickness tolerances of this class of armor special surface finishing may be required
(see 6.1.3).
1.2.4 Class 4a. Wrought armor plate with an ordered thickness of 0.098 to 2.750 inches (2.5 to
69.9 mm) which is designed for better resistance to penetration with respect to Class 1 (see 6.1.4)
1.2.5 Class 4b. Wrought armor plate that is air hardened and auto-tempered with an ordered
thickness of 0.098 to 2.750 inches (2.5 to 69.9 mm) which is designed for better resistance to
penetration with respect to Class 1 (see 6.1.5)
2. APPLICABLE DOCUMENTS
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 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.
INTERNATIONAL STANDARDIZATION AGREEMENTS
ISO 9712
-
Non-Destructive Testing - Qualification and
Certification of NDT Personnel
(Copies of this document are available from https://www.iso.ch or from the International
Organization for Standardization American National Standards Institute 11 West 42nd Street,
13th Floor New York, New York, United States, 10036.)
DEPARTMENT OF DEFENSE STANDARDS
MIL-STD-129
-
Military Marking for Shipment and Storage
(Copies of these documents are available online at https://quicksearch.dla.mil/ or
https://assist.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue,
Building 4D, Philadelphia, PA 19111-5094.)
2
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