1、 AEROSPACE STANDARD BOLT, MACHINE - DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, PD SHANK, SILVER PLATED, NICKEL ALLOY, UNS N07718, 185 KSI MIN, .5000-20 UNJF-3AAS3255Copyright 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 2013-02THIRD ANGLE PROJECTION CUSTODIAN: E-25 REV.C FEDERAL SUPPLY CLASS 5306 AS3255 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/AS3255C 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 AS3255 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, .5000-20 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 AS3255-03 .740 - .760 .030 .125 7.33 AS3255-30 2.865 - 2.885 1.465 1.625 18.18 AS3255-04 .802 - .822 .030 .125 7.65 AS3255-31 2.990 - 3.010 1.590 1.750 18.81 AS3255-05 .865 - .885 .030 .125 7.97 AS3255-32 3.115 - 3.135 1.715 1.875 19.45 AS3255-06 .928 - .948 .030
9、.125 8.29 AS3255-33 3.240 - 3.260 1.840 2.000 20.09 AS3255-07 .990 - 1.010 .030 .125 8.61 AS3255-34 3.365 - 3.385 1.965 2.125 20.73 AS3255-08 1.052 - 1.072 .030 .125 8.93 AS3255-35 3.490 - 3.510 2.090 2.250 21.35 AS3255-09 1.115 - 1.135 .030 .125 9.25 AS3255-36 3.615 - 3.635 2.215 2.375 22.01 AS3255
10、-10 1.178 - 1.198 .030 .125 9.56 AS3255-37 3.740 - 3.760 2.340 2.500 22.64 AS3255-11 1.240 - 1.260 .030 .125 9.88 AS3255-38 3.865 - 3.885 2.465 2.625 23.28 AS3255-12 1.302 - 1.322 .030 .125 10.20 AS3255-39 3.990 - 4.010 2.590 2.750 23.92 AS3255-13 1.365 - 1.385 .030 .125 10.53 AS3255-40 4.115 - 4.13
11、5 2.715 2.875 24.56 AS3255-14 1.428 - 1.448 .030 .188 10.84 AS3255-41 4.240 - 4.260 2.840 3.000 25.19 AS3255-15 1.490 - 1.510 .090 .250 11.16 AS3255-42 4.365 - 4.385 2.965 3.125 25.83 AS3255-16 1.552 - 1.572 .152 .312 11.48 AS3255-43 4.490 - 4.510 3.090 3.250 26.47 AS3255-17 1.615 - 1.635 .215 .375
12、11.80 AS3255-44 4.615 - 4.635 3.215 3.375 27.10 AS3255-18 1.678 - 1.698 .278 .438 12.11 AS3255-45 4.740 - 4.760 3.340 3.500 27.75 AS3255-19 1.740 - 1.760 .340 .500 12.44 AS3255-46 4.865 - 4.885 3.465 3.625 28.38 AS3255-20 1.802 - 1.822 .402 .562 12.77 AS3255-47 4.990 - 5.010 3.590 3.750 29.02 AS3255
13、-21 1.865 - 1.885 .465 .625 13.07 AS3255-48 5.115 - 5.135 3.715 3.875 29.66 AS3255-22 1.928 - 1.948 .528 .688 13.39 AS3255-49 5.240 - 5.260 3.840 4.000 30.60 AS3255-23 1.990 - 2.010 .590 .750 13.71 AS3255-50 5.365 - 5.385 3.965 4.125 30.93 AS3255-24 2.115 - 2.135 .715 .875 14.35 AS3255-51 5.490 - 5.
14、510 4.090 4.250 31.58 AS3255-25 2.240 - 2.260 .840 1.000 14.99 AS3255-52 5.615 - 5.635 4.215 4.375 32.22 AS3255-26 2.365 - 2.385 .965 1.125 15.62 AS3255-53 5.740 - 5.760 4.340 4.500 32.85 AS3255-27 2.490 - 2.510 1.090 1.250 16.27 AS3255-54 5.865 - 5.885 4.465 4.625 33.50 AS3255-28 2.615 - 2.635 1.21
15、5 1.375 16.90 AS3255-55 5.990 - 6.010 4.590 4.750 34.14 AS3255-29 2.740 - 2.760 1.340 1.500 17.54 AEROSPACE STANDARD AS3255 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, .5000-20 UNJF-3A NOTES: 1. FOR
16、 PART NUMBERS AS3255-03 THRU AS3255-24 THE THREAD PD (DATUM Z ) SHALL REPLACE DATUM Y . 2. MATERIAL: CORROSION 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 A
17、RE AFTER PLATING. 5. FLUORESCENT PENETRANT INSPECTION BEFORE PLATING PER ASTM E1417/E1417M, TYPE 1, SENSITIVITY LEVEL 2 MIN. 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 UNL
18、ESS OTHERWISE SPECIFIED. 8. DIMENSIONS IN INCHES. 9. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M-1982 (ASME PUBLICATION). 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 EDITO
19、RIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE 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.
