SAE MA1943A-1990
Nuts, Self-Locking, UNS N07001 730 Degrees C, 1100 MPa, and 1210 MPa Procurement Specification for, Metric FSC 5310

Standard No.

SAE MA1943A-1990

Release Date

1990

Published By

Society of Automotive Engineers (SAE)

Status

Be replaced

Replace By

SAE MA1943A-2012

Latest

SAE MA1943B-2018

Scope

This procurement specification covers aircraft quality self-locking nuts for wrenching (hex, spline) and anchor (plate, gang channel, shank) type of nuts made from a corrosion and heat resistant nickel-base alloy of the type identified under the Unified Numbering System as UNS N07001. Tension height nuts having overall length of threaded portion not less than 1.2 times the nominal thread diameter have 120 MPa minimum tensile strength at room temperature. Shear height nuts having shorter threaded portion have 1100 MPa minimum tensile strength at room temperature. Maximum test temperature of parts is 730 degrees C.

SAE MA1943A-1990 Referenced Document

• ASME B1.13M-1983 Metric Screw Threads: M Profile
• ASTM E112-88 Standard Test Methods for Determining Grain Size
• SAE AMS2411D-1984 Silver Plating for High Temperature Applications
• SAE AMS2645 Fluorescent Penetrant Inspection
• SAE AMS5544 ALLOY SHEET, STRIP, AND PLATE, CORROSION AND HEAT RESISTANT Nickel Base - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al Consumable Electrode or Vacuum Induction Melted, Annealed
• SAE AMS5706 ALLOY BARS, FORGINGS, AND RINGS, CORROSION AND HEAT RESISTANT Nickel Base - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al Solution Heat Treated, 1825 - 1900 F (996.1 - 1037.8 C) Treatment Consumable Electrode or Vacuum Induction Melted
• SAE AMS5707 ALLOY BARS, FORGINGS, AND RINGS, CORROSION AND HEAT RESISTANT Nickel Base - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al Solution, Stabilization, and Precipitation Heat Treated 1825 - 1900 F (996.1 - 1037.8 C) Treatment Consumable Electrode or Vacuum I...
• SAE AMS5708 ALLOY BARS AND FORGINGS@ CORROSION AND HEAT RESISTANT Nickel Base - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al Solution Heat Treated@ 1975 F (1079.4 C)Treatment consumable Electrode or Vacuum Induction Melted
• SAE AMS5709 ALLOY BARS AND FORGINGS, CORROSION AND HEAT RESISTANT Nickel Base - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al Solution, Stabilization, and Precipitation Heat Treated. 1975 F (1079.4 C) Treatment Consumable Electrode or Vacuum Induction Melted
• SAE AS1310 FASTENER TORQUE FOR THREADED APPLICATIONS, DEFINITIONS OF
• SAE MA1370-1990 Screw Threads - MJ Profile, Metric [Superseded: SAE AS 1370A]
• SAE MA1520-1987 Areas for Calculating Stress or Load Values for Metric MJ Externally Threaded Fasteners
• SAE MA1566 GAGING PRACTICE AND GAGE REQUIREMENTS FOR MJ METRIC SCREW THREADS
• SAE MA1586 WRENCH CONFIGURATION, 12 SPLINE DRIVE, METRIC
• SAE MA3378 BOLTS & SCREWS, UNS N07001 815°C, 1210 MPa 1045°C Solution Heat Treatment Procurement Specification For, Metric

SAE MA1943A-1990 history

• 2018 SAE MA1943B-2018 Nuts@ Self-Locking@ UNS N07001 730 °C@ 1100 MPa@ and 1210 MPa Procurement Specification for@ Metric
• 2012 SAE MA1943A-2012 Nuts, Self-Locking, UNS N07001 730°C, 1100 MPa, and 1210 MPa Procurement Specification For, Metric
• 1990 SAE MA1943A-1990 Nuts, Self-Locking, UNS N07001 730 Degrees C, 1100 MPa, and 1210 MPa Procurement Specification for, Metric FSC 5310
• 1987 SAE MA1943-1987 NUT, SELF LOCKING - UNS N07001, 760°C, 1250 MPa & 1100 MPa, MJ THREAD, PROCUREMENT SPECIFICATION FOR, METRIC