Ammunition Lot Numbering
(Unless otherwise indicated, copies of federal and military specifications and standards are available from
Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.)
2.1.2 Other Government documents, drawings, and publications. The following Government
drawings form a part of this specification to the extent specified herein. Unless otherwise specified, the
issues are those cited in the solicitation (see 6.2).
Indian Head Division, Naval Surface Warfare Center (CAGE Code 19200)
Release, Firing Pin, Gas Actuated, M1A1
U.S. Air Force
SPI 00-731-9272 Release, Firing Pin, Gas Actuated, M1A1
(Application for copies should be addressed to: Commander, Indian Head Division, Naval Surface Warfare
Center, 101 Strauss Avenue, Data Control Branch (Code 3720), Indian Head, MD 20640-5035.)
2.2 Order of precedence. In the event of a conflict 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 has been obtained.
3.1 First article. When specified in the contract or purchase order (see 6.2), a sample shall be
subjected to the first article inspection (see 4.4 and 6.3).
3.2 Materials. All materials used in the manufacture of the removers and release mechanisms shall
conform to the specifications referred to on the respective drawings unless specific approval in writing
covering a departure therefrom has been obtained from the cognizant Navy design activity prior to
manufacture. When alternate materials or methods of manufacture are specified on the drawings, the
bidder's selections shall be clearly stated in the proposal.
3.3 Hardness and other physical properties. Hardness and other physical properties required by the
drawing shall be uniform throughout the part within specified tolerances. Requirements for all alloy steel
parts shall be achieved by quenching and tempering.
3.4 Hydrostatic pressure. The cylinder and housing shall withstand an internal hydrostatic pressure of
7,500 pounds per square inch (psi) for a minimum of 30 seconds without deformation or mechanical failure