1、 AEROSPACE STANDARD STUD-STEPPED, 1.5 DIA ENGAGEMENT, .375-16 UNJC-3A MOD X .3125-24 UNJF-3A (UNS S66286) AS3490Copyright 2015 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, m
2、echanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 1992-11REAF
3、FIRMED1999-03REVISED 2015-03THIRD ANGLE PROJECTION CUSTODIAN: E-25 REV.A FEDERAL SUPPLY CLASS 4730AS3490 SHEET 1 OF 3 REV. A PROCUREMENT SPECIFICATION: SEE NOTE 3SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of technicalandengineering sciences.
4、Theuse ofthisreport is entirelyvoluntary, andits applicability and suitability forany particularuse,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised,reaffirmed, stabilized,
5、 orcancelled. SAE invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS3490A RATIONALE FIGURE REDRAWN , THREAD SPEC REVISED, IN NOTES PASSIVATION SPEC, PENETRENT INSPECTION, SPEC ALL REVIS
6、ED, OTHER SPECS REVISED TO CORRECT CALLOUT. LDB MIN FULL THREAD.3125-24 UNJF-3APER AS8879B.3750-16 UNJS-3A MODA45 10BOTH ENDS-+R.030.02063 .279.289.00632SECTION THRU.003 A.562 REFLEAD THREADPER AS3062THREAD RUNOUTPER AS3062.276.286 CEH19ROOT RAD = .0094 -.0113AS8879SEE TABLE 1 FOR DATAOVERSIZE IDENT
7、IFICATIONMARK PER AS478 CLASS CMATERIAL IDENTIFICATIONCODE PER AS 269.MARK MATERIAL CODE SHOWNPER AS478 CLASS C .224.214THREAD PROFILESAB.006FIGURE 1 AEROSPACE STANDARD AS3490 SHEET 2 OF 3 REV. A STUD-STEPPED, 1.5 DIA ENGAGEMENT, .375-16 UNJC-3A MOD X .3125-24 UNJF-3A (UNS S66286) TABLE 1 - STANDARD
8、 AND OVERSIZE OVERSIZE IDENTIFICATION STANDARD +.003 +.006 +.009 +.012 C MAJOR DIA MOD .370 - .375 .370 - .375 .370 - .375 .379 - .384 .379 - .384 PITCH DIA MOD .3392 - .3407 .3422 - .3427 .3452 - .3467 .3482 - .3497 .3512 - .3527 PITCH DIA LEAD THD .3324 - .3344 .3354 - .3374 .3384 - .3404 .3414 -
9、.3434 .3444 - .3464 MINOR DIA MOD .3038 - .3091 .3068 - .3121 .3098 - .3151 .3128 - .3181 .3158 - .3211 TABLE 2 - LENGTHS D L B MIN STANDARD PART No +.003 PART No +.006 PART No +.009 PART No +.012 PART No .688 1.250 .500 AS3490-011 AS3490-012 AS3490-013 AS3490-014 AS3490-015 .750 1.312 .562 AS3490-0
10、16 AS3490-017 AS3490-018 AS3490-019 AS3490-020 .813 1.375 .625 AS3490-021 AS3490-022 AS3490-023 AS3490-024 AS3490-025 .876 1.438 .625 AS3490-026 AS3490-027 AS3490-028 AS3490-029 AS3490-030 .938 1.500 .625 AS3490-031 AS3490-032 AS3490-033 AS3490-034 AS3490-035 .969 1.531 .625 AS3490-036 AS3490-037 AS
11、3490-038 AS3490-039 AS3490-040 1.000 1.562 .625 AS3490-041 AS3490-042 AS3490-043 AS3490-044 AS3490-045 1.063 1.625 .625 AS3490-046 AS3490-047 AS3490-048 AS3490-049 AS3490-050 1.126 1.688 .625 AS3490-051 AS3490-052 AS3490-053 AS3490-054 AS3490-055 1.188 1.750 .625 AS3490-056 AS3490-057 AS3490-058 AS3
12、490-059 AS3490-060 1.250 1.812 .625 AS3490-061 AS3490-062 AS3490-063 AS3490-064 AS3490-065 1.313 1.875 .625 AS3490-066 AS3490-067 AS3490-068 AS3490-069 AS3490-070 1.376 1.938 .625 AS3490-071 AS3490-072 AS3490-073 AS3490-074 AS3490-075 1.438 2.000 .625 AS3490-076 AS3490-077 AS3490-078 AS3490-079 AS34
13、90-080 1.500 2.062 .625 AS3490-081 AS3490-082 AS3490-083 AS3490-084 AS3490-085 1.563 2.125 .625 AS3490-086 AS3490-087 AS3490-088 AS3490-089 AS3490-090 1.626 2.188 .625 AS3490-091 AS3490-092 AS3490-093 AS3490-094 AS3490-095 1.688 2.250 .625 AS3490-096 AS3490-097 AS3490-098 AS3490-099 AS3490-100 1.750
14、 2.312 .625 AS3490-101 AS3490-102 AS3490-103 AS3490-104 AS3490-105 1.876 2.438 .625 AS3490-106 AS3490-107 AS3490-108 AS3490-109 AS3490-110 2.000 2.562 .625 AS3490-111 AS3490-112 AS3490-113 AS3490-114 AS3490-115 2.126 2.688 .625 AS3490-116 AS3490-117 AS3490-118 AS3490-119 AS3490-120 2.250 2.812 .625
15、AS3490-121 AS3490-122 AS3490-123 AS3490-124 AS3490-125 2.376 2.938 .625 AS3490-126 AS3490-127 AS3490-128 AS3490-129 AS3490-130 2.500 3.062 .625 AS3490-131 AS3490-132 AS3490-133 AS3490-134 AS3490-135 2.626 3.188 .625 AS3490-136 AS3490-137 AS3490-138 AS3490-139 AS3490-140 2.750 3.312 .625 AS3490-141 A
16、S3490-142 AS3490-143 AS3490-144 AS3490-145 2.876 3.438 .625 AS3490-146 AS3490-147 AS3490-148 AS3490-149 AS3490-150 3.000 3.562 .625 AS3490-151 AS3490-152 AS3490-153 AS3490-154 AS3490-155 3.126 3.688 .625 AS3490-156 AS3490-157 AS3490-158 AS3490-159 AS3490-160 3.250 3.812 .625 AS3490-161 AS3490-162 AS
17、3490-163 AS3490-164 AS3490-165 3.376 3.938 .625 AS3490-166 AS3490-167 AS3490-168 AS3490-169 AS3490-170 3.500 4.062 .625 AS3490-171 AS3490-172 AS3490-173 AS3490-174 AS3490-175 AEROSPACE STANDARD AS3490 SHEET 3 OF 3 REV. A STUD-STEPPED, 1.5 DIA ENGAGEMENT, .375-16 UNJC-3A MOD X .3125-24 UNJF-3A (UNS S
18、66286) NOTES: 1. MATERIAL: CORROSION AND HEAT RESISTANT STEEL, AMS5731, AMS5732, AMS5734, OR AMS5737 (UNS S66286). CHEMICAL COMPOSITION ONLY. 2. FINISH: PASSIVATE PER AMS2700. 3. PROCUREMENT SPECIFICATION: AS7477 EXCEPT REQUIREMENTS RELATED TO BOLT HEADS NOT APPLICABLE. 4. FLUORESCENT PENETRANT INSP
19、ECTION PER ASTM E1417/E1417M TYPE 1. SENSITIVITY LEVEL 2 MIN. 5. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M. REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, SURFACES TO BE 125 MICROINCHES Ra. 6. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. LINEAR DIMENSIONS .010. 7. DIMENSIONING AND
20、TOLERANCING: ANSI Y14.5M-1982 (ASME PUBLICATION) 8. DIMENSIONS IN INCHES UNLESS OTHERWISE SPECIFIED. 9. DO NOT USE UNASSIGNED PART NUMBERS. 10. 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
21、 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.
