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BOLT, MACHINE-SPLINE EXTENDED WASHER, PD SHANK LONG THREAD, AMS5731, METRIC
- Aerospace Standard
- MA3287
- Reaffirmed
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Rationale
MA3287 HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY.
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1
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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2
MATERIAL: CORROSION AND HEAT RESISTANT STEEL AMS5731. (UNS S66286)
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3
PROCUREMENT SPECIFICATION: MA3374
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4
HARDNESS: 26-35 HRC OR EQUIVALENT.
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5
FLUORESCENT PENETRANT INSPECTION: AMS2645
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6
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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7
PART NUMBER SHALL INCLUDE THE STANDARD NUMBER AND THE DASH NUMBER TO INDICATE DIAMETER AND LENGTH, EXAMPLE OF PART NUMBER:
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MA3287-040024 = BOLT, MJ4X0.7 THREAD, 24 LONG.
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MA3287-120114 = BOLT, MJ12X1.25 THREAD, 114 LONG.
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8
SHAPE OF BOTTOM OF HOLE MAY BE FLAT OR CURVED WITHIN DIMENSIONS SHOWN, NO HOLE IS REQUIRED ON DIAMETER 4.
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9
WRENCHING CONFIGURATION SHALL BE IN ACCORDANCE WITH MA1549. FOR THE APPLICABLE DASH NUMBER SEE TABLE I.
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10
BREAK EDGES 0.1-0.4, UNLESS OTHERWISE SPECIFIED.
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11
DIMENSIONING AND TOLERANCING: ANSI Y14.5M-1982. TOLERANCE GRADES PER ANSI B4.2-1978.
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12
ALL DIMENSIONS IN SI MILLIMETRES UNLESS OTHERWISE SPECIFIED.
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13
DO NOT USE UNASSIGNED PART NUMBERS.MA, AS,& AMS ARE SAE PUBLICATIONSANSI IS AMERICAN NATIONAL STDS. INSTITUTE PUBLICATION.
Topic
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Issuing Committee
E-25 General Standards for Aerospace and Propulsion Systems
The SAE E-25 General Standards for Aerospace & Propulsion Systems committee addresses aerospace propulsion systems and components. These systems and components include bolts, screws, nuts, washers, studs, rivets, pins, covers, O-rings, brackets, plugs and associated procurement requirements, as well as solid film lubricants and design specifications for screw threads and fastener assembly requirements.
Reference
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