BOLT, MACHINE-SPLINE EXTENDED WASHER, PD SHANK LONG THREAD, AMS5731, METRIC MA3287 – available for purchase at $69.00. Find the right standards and certifications for your needs with SAE.
Rationale:
MA3287 HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY.
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FOR PART NUMBERS WHERE DIMENSION N IS EQUAL OR LESS ONE DIAMETER TO THE HEAD. THE THREAD PD SHALL REPLACE DATUM B.
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MATERIAL: CORROSION AND HEAT RESISTANT STEEL AMS5731. (UNS S66286)
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PROCUREMENT SPECIFICATION: MA3374
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HARDNESS: 26-35 HRC OR EQUIVALENT.
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FLUORESCENT PENETRANT INSPECTION: AMS2645
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SURFACE TEXTURE: SYMBOLS PER ANSI Y14.36-1978: REQUIREMENTS PER ANSI B46.1-1985 UNLESS OTHERWISE SPECIFIED SURFACES TO BE 3.2 MICROMETRES Ra.
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PART NUMBER SHALL INCLUDE THE STANDARD NUMBER AND THE DASH NUMBER TO INDICATE DIAMETER AND LENGTH, EXAMPLE OF PART NUMBER:
MA3287-040024 = BOLT, MJ4X0.7 THREAD, 24 LONG.
MA3287-120114 = BOLT, MJ12X1.25 THREAD, 114 LONG.
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SHAPE OF BOTTOM OF HOLE MAY BE FLAT OR CURVED WITHIN DIMENSIONS SHOWN, NO HOLE IS REQUIRED ON DIAMETER 4.
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WRENCHING CONFIGURATION SHALL BE IN ACCORDANCE WITH MA1549. FOR THE APPLICABLE DASH NUMBER SEE TABLE I.
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BREAK EDGES 0.1-0.4, UNLESS OTHERWISE SPECIFIED.
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DIMENSIONING AND TOLERANCING: ANSI Y14.5M-1982. TOLERANCE GRADES PER ANSI B4.2-1978.
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ALL DIMENSIONS IN SI MILLIMETRES UNLESS OTHERWISE SPECIFIED.
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DO NOT USE UNASSIGNED PART NUMBERS.
MA, AS,& AMS ARE SAE PUBLICATIONS
ANSI IS AMERICAN NATIONAL STDS. INSTITUTE PUBLICATION.
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Identification numbers
Also known as: SAE MA 3287
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