1、 AEROSPACE STANDARD BOLT, MACHINE - DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, PD SHANK, SILVER PLATED, NICKEL ALLOY, UNS N07718, 185 KSI MIN, .2500-28 UNJF-3AAS3251Copyright 2013 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
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3、rg SAE WEB ADDRESS: http:/www.sae.org ISSUED 1980-07REAFFIRMED 2007-06 REVISED 2013-01THIRD ANGLE PROJECTION CUSTODIAN: E-25 REV.C FEDERAL SUPPLY CLASS 5306 AS3251 SHEET 1 OF 3 REV. C PROCUREMENT SPECIFICATION: AS7466SAE Technical Standards Board Rules provide that: “This report ispublishedby SAE to
4、advance thestate of technicalandengineering sciences. Theuse ofthis report is entirely voluntary, andits applicability and suitability forany particular use,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five ye
5、ars at which time itmay berevised, reaffirmed, stabilized, orcancelled. SAE invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS3251C RATIONALE REVISE WRENCHING ELEMENT RUNOUT CALLOUT (RE
6、LOCATE FROM WRENCH FLATS TO POINTS). REVISE THREAD SPECIFICATION TO AS8879. REVISE LIGHTENING HOLE CONFIGURATION (ADD SECTION VIEW) TO ALLOW OPTIONAL SHAPE AT BOTTOM OF HOLE, ADD SYMBOL FOR AND MMC TO POSITION TOLERANCE FOR SAFETY WIRE HOLES, DELETE .015 MIN RADIUS AT BASE OF WRENCH PAD, AND FIGURE
7、1 REDRAWN. FIGURE 1 - BOLT AEROSPACE STANDARD AS3251 SHEET 2 OF 3 REV. C BOLT, MACHINE - DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, PD SHANK, SILVER PLATED, NICKEL ALLOY, UNS N07718, 185 KSI MIN, .2500-28 UNJF-3A TABLE 1 - PART NUMBERS AND DIMENSIONS PART NO. L N MIN M MAX APPROX.MASSLB/100 PART
8、NO. L N MIN M MAX APPROX.MASSLB/100 AS3251-04 .365 - .385 .025 .099 1.04 AS3251-34 2.490 - 2.510 1.619 1.750 3.60 AS3251-05 .428 - .448 .025 .099 1.11 AS3251-35 2.615 - 2.635 1.744 1.875 3.75 AS3251-06 .490 - .510 .025 .099 1.18 AS3251-36 2.740 - 2.760 1.869 2.000 3.90 AS3251-07 .552 - .572 .025 .09
9、9 1.27 AS3251-37 2.865 - 2.885 1.994 2.125 4.05 AS3251-08 .615 - .635 .025 .099 1.34 AS3251-38 2.990 - 3.010 2.119 2.250 4.20 AS3251-09 .678 - .698 .025 .099 1.41 AS3251-39 3.115 - 3.135 2.244 2.375 4.35 AS3251-10 .740 - .760 .025 .099 1.48 AS3251-40 3.240 - 3.260 2.369 2.500 4.51 AS3251-11 .802 - .
10、822 .025 .099 1.57 AS3251-41 3.365 - 3.385 2.494 2.625 4.65 AS3251-12 .865 - .885 .025 .125 1.64 AS3251-42 3.490 - 3.510 2.619 2.750 4.81 AS3251-13 .928 - .948 .057 .188 1.71 AS3251-43 3.615 - 3.635 2.744 2.875 4.95 AS3251-14 .990 - 1.010 .119 .250 1.80 AS3251-44 3.740 - 3.760 2.869 3.000 5.11 AS325
11、1-15 1.052 - 1.072 .181 .312 1.87 AS3251-45 3.865 - 3.885 2.994 3.125 5.25 AS3251-16 1.115 - 1.135 .244 .375 1.94 AS3251-46 3.990 - 4.010 3.119 3.250 5.41 AS3251-17 1.178 - 1.198 .307 .438 2.01 AS3251-47 4.115 - 4.135 3.244 3.375 5.55 AS3251-18 1.240 - 1.260 .369 .500 2.11 AS3251-48 4.240 - 4.260 3.
12、369 3.500 5.71 AS3251-19 1.302 - 1.322 .431 .562 2.17 AS3251-49 4.365 - 4.385 3.494 3.625 5.87 AS3251-20 1.365 - 1.385 .494 .625 2.24 AS3251-50 4.490 - 4.510 3.619 3.750 6.01 AS3251-21 1.428 - 1.448 .557 .688 2.32 AS3251-51 4.615 - 4.635 3.744 3.875 6.17 AS3251-22 1.490 - 1.510 .619 .750 2.40 AS3251
13、-52 4.740 - 4.760 3.869 4.000 6.31 AS3251-23 1.552 - 1.572 .681 .812 2.47 AS3251-53 4.865 - 4.885 3.994 4.125 6.47 AS3251-24 1.615 - 1.635 .744 .875 2.54 AS3251-54 4.990 - 5.010 4.119 4.250 6.61 AS3251-25 1.678 - 1.698 .807 .938 2.62 AS3251-55 5.115 - 5.135 4.244 4.375 6.77 AS3251-26 1.740 - 1.760 .
14、869 1.000 2.70 AS3251-56 5.240 - 5.260 4.369 4.500 6.91 AS3251-27 1.802 - 1.822 .931 1.062 2.77 AS3251-57 5.365 - 5.385 4.494 4.625 7.07 AS3251-28 1.865 - 1.885 .994 1.125 2.84 AS3251-58 5.490 - 5.510 4.619 4.750 7.21 AS3251-29 1.928 - 1.948 1.057 1.188 2.92 AS3251-59 5.615 - 5.635 4.744 4.875 7.37
15、AS3251-30 1.990 - 2.010 1.119 1.250 3.00 AS3251-60 5.740 - 5.760 4.869 5.000 7.52 AS3251-31 2.115 - 2.135 1.244 1.375 3.15 AS3251-61 5.865 - 5.885 4.994 5.125 7.67 AS3251-32 2.240 - 2.260 1.369 1.500 3.30 AS3251-62 5.990 - 6.010 5.119 5.250 7.82 AS3251-33 2.365 - 2.385 1.494 1.625 3.45 AEROSPACE STA
16、NDARD AS3251 SHEET 3 OF 3 REV. C BOLT, MACHINE - DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, PD SHANK, SILVER PLATED, NICKEL ALLOY, UNS N07718, 185 KSI MIN, .2500-28 UNJF-3A NOTES: 1. FOR PART NUMBERS AS3251-04 THRU AS3251-18 THE THREAD PD (DATUM Z ) SHALL REPLACE DATUM Y . 2. MATERIAL: CORROSION
17、AND HEAT RESISTANT NICKEL ALLOY PER AMS5662 (UNS N07718). 3. PROCUREMENT SPECIFICATION: AS7466. 4. FINISH: SILVER PLATE PER AMS2411 .0002 TO .0006 THICK AT THREAD PD. DIMENSIONS SPECIFIED ARE AFTER PLATING. 5. FLUORESCENT PENETRANT INSPECTION BEFORE PLATING PER ASTM E1417/E1417M, TYPE 1, SENSITIVITY
18、 LEVEL 2. 6. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M. REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, SURFACES TO BE 125 MICROINCHES Ra. 7. BREAK SHARP EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 8. DIMENSIONS IN INCHES. 9. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M-1982 (ASME PUBLIC
19、ATION). 10. DO NOT USE UNASSIGNED PART NUMBERS. 11. A CHANGE BAR (l) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITL
20、E INDICATES A COMPLETE REVISION OF THE DOCUMENT, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY. AS AND AMS ARE SAE INTERNATIONAL PUBLICATIONS. ASME IS AN AMERICAN SOCIETY OF MECHANICAL ENGINEERS PUBLICATION. ASTM IS AN ASTM INTERNATIONAL PUBLICATION.
