BOLT, MACHINE-HEX HEAD-FULL SHANK, LONG THREAD, AMS 5731, METRIC MA3347

DOI: https://doi.org/10.4271/MA3347

Issuing Committee: E-25 General Standards for Aerospace and Propulsion Systems

Publisher: SAE International

Pages: 7

Rationale: MA3347 HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY. 1 FOR PART NUMBERS WHERE DIMENSION IS EQUAL TO OR LESS THAN ONE TIMES THE NOMINAL DIAMETER OF THE THREAD, THE THREAD PD SHALL REPLACE DATUM B. 2 MATERIAL: HEAT AND CORROSION RESISTANT STEEL AMS 5731 (UNS S66286) 3 PROCUREMENT SPECIFICATION: MA3374 4 HARDNESS: 26-35 HRC OR EQUIVALENT. 5 FLUORESCENT PENETRANT INSPECTION: AMS 2645 ACCEPTANCE CRITERIA PER MA3374 6 SURFACE TEXTURE: SYMBOLS PER ANSI Y14.36-1978; REQUIREMENTS PER ANSI B46.1-1985. UNLESS OTHERWISE SPECIFIED SURFACES TO BE 3.2 MICROMETERS Ra 7 PART NUMBER SHALL INCLUDE THE STANDARD NUMBER AND THE DASH NUMBER TO INDICATE DIAMETER AND LENGTH. EXAMPLE OF PART NUMBER: MA3347-030014 = BOLT, MJ3x0.5 THREAD, 14 LONG MA3347-200114 = BOLT, MJ20x1.5 THREAD, 114 LONG 8 MARK PART NUMBER AND MANUFACTURER'S IDENTIFICATION PER AS 478 CLASS A. FOR MJ3 & MJ4 MARK ONLY MA3347 AND MANUFACTURER'S IDENTIFICATION. 9 BREAK EDGES 0.1-0.4, UNLESS OTHERWISE SPECIFIED. 10 DIMENSIONING AND TOLERANCING: ANSI Y14.5M-1982. TOLERANCE GRADE PER ANSI B4.2-1978. 11 ALL DIMENSIONS IN MILLIMETERS UNLESS OTHERWISE SPECIFIED. 12 DO NOT USE UNASSIGNED PART NUMBERS. AS, MA & AMS ARE SAE PUBLICATIONS. ANSI IS AMERICAN NATIONAL STANDARDS INSTITUTE PUBLICATION.