SAE MA1573A

1. SCOPE
2. APPLICABLE DOCUMENTS
3. TECHNICAL REQUIREMENTS
4. QUALITY ASSURANCE PROVISIONS
5. PREPARATION FOR DELIVERY
6. ACKNOWLEDGEMENT
7. REJECTIONS
8. NOTES
APPENDIX A - MEASUREMENT OF PERPENDICULARITY VARIATION OF THE
             BEARING SURFACE
APPENDIX B - WRENCH TORQUE TEST
APPENDIX C - PUSH-OUT TEST
APPENDIX D - TORQUE-OUT TEST
APPENDIX E - PERMANENT SET TEST
APPENDIX F - REUSABILITY TEST AT ROOM TEMPERATURE, AFTER BAKING
APPENDIX G - REUSABILITY TEST AT ROOM TEMPERATURE, AT RECEIVED
             CONDITION
APPENDIX H - THREE-CYCLE TEST AT ROOM TEMPERATURE
APPENDIX J - ACCEPTANCE CRITERIA OF SURFACE DISCONTINUITIES ON
             SELF-LOCKING NUTS

Describes the requirements for the following types of self-locking nuts: a. Wrenching nuts: that is, hex, double hex, spline drive b. Anchor nuts: that is, plate nuts, gang channel nuts, shank nuts.

This specification establishes the requirements for the following types of self-locking nuts:aWrenching nuts: that is, hex, double hex, spline drivebAnchor nuts: that is, plate nuts, gang channel nuts, shank nutsThe wrenching nuts and shank nuts are made of low alloy steels, and the nut elements of plate and gang channel nuts are made of carbon steels or low alloy steels and having MJ threads to ISO 5855/2. Nuts have 1100 MPa tensile strength class at room temperature. Maximum test temperature of parts at 235 °C.