1、 AEROSPACE STANDARD COVER ASSEMBLY, ELECTRICAL, FOR MS27212 TERMINAL BOARD ASSEMBLY AS18029Copyright 2017 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, mechanical, photocopyi
2、ng, 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 ISSUED2004-06REVISED 2017-04THIRD ANGLE
3、 PROJECTION CUSTODIAN: AE-8/AE-8C2 REV.B FEDERAL SUPPLY CLASS 5940 AS18029 SHEET 1 OF 5 REV. B PROCUREMENT SPECIFICATION: NONE SAE Technical Standards Board Rules provide that: “This report is published by SAEtoadvance thestate of technicaland engineering sciences. The useof this report is entirely
4、voluntary, and its applicability andsuitability for any particularuse, includingany patent infringement arisingtherefrom,is the sole responsibility of theuser.” SAE reviews eachtechnical reportatleast every fiveyears at whichtime it may be revised, reaffirmed, stabilized, or cancelled. SAE invites y
5、our written comments and suggestions.SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS18029B RATIONALE NEW MATERIAL REQUIRED TO REPLACE MATERIAL NO LONGER SUPPORTED BY INDUSTRY. INK OR LASER MARKING IS PERMITTED. FIGURE 1 - COVER ASSEMBLY NO
6、TE (a): COVER ASSEMBLIES MS18029-1L-2 OR MS18029-1S-2 USE NUT ASSEMBLY MS18029-21 (QTY 1). ALL OTHERS REQUIRE TWO NUT ASSEMBLIES. TABLE 1 - DIMENSIONS ASSEMBLY NO. COVER DASH NO. STUDS NUT ASSEMBLY DASH NO. C (REF) D (REF) E (REF) F (REF) TYPE L TYPE S (N) MAX SIZE MS18029-1(*)-(N) -11L-(N) -11S-(N)
7、 20 .138-32 -21 12.334 .234 .734 .813 MS18029-2(*)-(N) -12L-(N) -12S-(N) 16 .190-32 -22 12.454 .906 1.063 MS18029-3(*)-(N) -13L-(N) -13S-(N) 8 .250-28 -23 12.641 .375 1.312 1.500 MS18029-4(*)-(N) .312-24 -24 MS18029-5(*)-(N) .375-24 -25 MS18029-6(*)-(N) -14L-(N) -14S-(N) 16 .164-32 -26 12.454 .234 .
8、734 .813 (*) USE LETTER L OR S TO INDICATE TYPE COVER DESIRED. (N) INDICATES THE NUMBER OF STUDS IN A MS27212 TERMINAL BOARD ASSEMBLY TO BE COVERED. AEROSPACE STANDARD AS18029 SHEET 2 OF 5 REV. B COVER ASSEMBLY, ELECTRICAL, FOR MS27212 TERMINAL BOARD ASSEMBLY REQUIREMENTS 1. EXAMPLE OF PART NUMBER M
9、S18029-2S-16 INDICATES A COVER ASSEMBLY FOR A MS27212 TERMINAL BOARD ASSEMBLY HAVING 16 STUDS, .190-32 UNF. THIS COVER ASSEMBLY WILL CONSIST OF THE FOLLOWING: a. MS18029-12S-18 TYPE S COVER b. MS18029-22 NUT ASSEMBLIES COVER ASSEMBLY MS PART NUMBER SHALL BE MARKED ON TOP OF COVER. 3. THE GOVERNMENT
10、SERVICES SHALL PROCURE AND STOCK ONLY COVERS MS18029-11L-20, -11S-20, -12L-16, 12S-16, -13L-8, 13S-8, -14L-16, 14S-18, AND NUT ASSEMBLIES MS18029-21 THROUGH -26. 4. THE INSTALLING ACTIVITY SHALL ASSEMBLE COVER ASSEMBLIES FROM PARTS TO BE STOCKED. 5. (N) CODE IS FOR INDUSTRY USE ONLY, FOR THE PROCURE
11、MENT OF COVER ASSEMBLIES OF VARIOUS LENGTHS. 6. COVER ASSEMBLIES ARE NOT TO BE USED IN INSTALLATIONS WHERE THE TEMPERATURE EXCEEDS 475 F. 7. A MINIMUM OF THREE THREADS MUST BE EXPOSED AFTER TERMINAL STACKING ON THE END STUDS FOR COVER INSTALLATION. FOR DESIGN FEATURE PURPOSES, THIS STANDARD TAKES PR
12、ECEDENCE OVER PROCUREMENT DOCUMENTS REFERENCED HEREIN. REFERENCED DOCUMENTS SHALL BE OF THE ISSUE IN EFFECT ON DATE OF INVITATIONS FOR BID. FIGURE 2 - COVER ASSEMBLY AEROSPACE STANDARD AS18029 SHEET 3 OF 5 REV. B COVER ASSEMBLY, ELECTRICAL, FOR MS27212 TERMINAL BOARD ASSEMBLY TABLE 2 - DIMENSIONS MS
13、 DASH NO. STUD SIZE (REF) MAX NO. OF STUDS (REF) A B .016 C MAX (REF) D .030 E .030 TYPE L F G H DIA .002 J .010 K RAD TYPE L TYPE S -11L-(N) -11S-(N) .138-32 20 .515 .594 12.334 .234 .734 .813 .406 .430 .034 .062 -12L-(N) -12S-(N) .190-32 16 .593 .750 12.454 .234 .906 1.063 .531 -13L-(N) -13S-(N) .
14、250-28 8 1.062 1.500 12.641 .375 1.312 1.500 .750 .664 .050 .125 .312-24 .375-24 -14L-(N) -14S-(N) .164-32 16 .593 .750 12.454 .234 .734 .813 .406 .430 .034 .062 NOTES 1. MATERIAL: PLASTIC, LAMINATE, RESIN GRADE G7 B-STAGE, GLASS-SILICONE IMPREGNATE CONSISTING OF GLASS FABRIC (US STYLE 7628, PLAIN W
15、EAVE) WITH METHYL SILICONE RESIN BINDER. B-STAGE STANDARD THICKNESS .0068 TO .0078 INCHES NOMINAL, RESIN CONTENT: 22 TO 38%, RESIN FLOW: 5 TO 15%. LAMINATING PRESSURE: 2000 PSI MAX, LAMINATING TEMPERATURE: 380.0 F MAX, AND LAMINATING TIME AT PRESSURE AND TEMPERATURE: 1 HOUR 10 MINUTES MAX. 2. TOLERA
16、NCE BETWEEN ANY TWO “B” DIMENSIONS SHALL BE WITHIN .010. 3. DIMENSIONS ARE IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCE: DECIMALS .016. 4. DIMPLES (INK MARK OR LASER MARK IS ACCEPTABLE IN LIEU OF DIMPLE) ARE NECESSARY ONLY WHEN PROCURED BY THE GOVERNMENT IN FULL LENGTH UNASSEMBLED FORM FOR ALTER
17、ATION TO SHORTER CONFIGURATION AS NEEDED. DIMPLING IS TO ENSURE CORRECT POSITIONING OF HOLE FOR THE NUT ASSEMBLY WHEN COVER IS USED ON TERMINAL BOARD ASSEMBLY HAVING LESS STUDS THAN MAXIMUM NUMBER SPECIFIED IN ABOVE TABLE. 5. EXAMPLE OF CALLOUT FOR SHORTER LENGTHS: MS18029-13L-5 IS A COVER OF THE TY
18、PE L WITH TWO .334 DIA HOLES SPACED 6.00 INCHES FROM CENTER TO CENTER. THIS COVER WHEN ASSEMBLED WITH TWO MS18029-23 NUT ASSEMBLIES BECOMES COVER ASSEMBLY MS18029-3L-5 AND IS USED TO COVER TERMINAL BOARD ASSEMBLY MS27212-3-5. 6. COVER MS PART NUMBER SHALL BE MARKED ON UNDERSIDE OF COVER. 7. VISUAL I
19、NSPECTION FOR WORKMANSHIP AND FOREIGN MATERIAL SHALL BE IN ACCORDANCE WITH TABLE V OF MIL-P-25518. 8. REVISION INDICATOR: 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
20、ISSUE OF A DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT, INCLUDING TECHNICAL REVISION. CHANGE BARS AND (R) ARE NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY. AEROSPACE STANDARD AS18029 SHEET 4 OF 5 R
21、EV. B COVER ASSEMBLY, ELECTRICAL, FOR MS27212 TERMINAL BOARD ASSEMBLY FIGURE 3 - NUT ASSEMBLY CONFIGURATIONS AEROSPACE STANDARD AS18029 SHEET 5 OF 5 REV. B COVER ASSEMBLY, ELECTRICAL, FOR MS27212 TERMINAL BOARD ASSEMBLY TABLE 3 - DIMENSIONS MS DASH NO. THREAD T RETAINING RING A B C D REF E REF F DIA
22、 .005 H DIA J DIA REF K REF M DIA REF N DIA .008 O P .0312 (REF) INSERT -21 .138-32 UNC-2B MS16624-1040 .129 .176 .250 .313 .500 .373 .397 .562 .310 .750 .365 .125 .1250 -22 .190-32 UNF-2B -23 .250-28 UNF-2B MS16624-1062 .212 .277 .367 .430 .625 .550 .625 .750 .437 .875 .570 .187 .1875 -24 .312-24 U
23、NF-2B -25 .375-24 UNF-2B -26 .164-32 UNC-2B MS16624-1040 .129 .176 .250 .313 .500 .373 .397 .562 .310 .750 .365 .125 .1250 REQUIREMENTS 1. MATERIAL: a. NUT: DIALLYL PHTHALATE GDI-30F PER ASTM D5948. b. METAL INSERT: CORROSION RESISTANT STEEL, COMPOSITION 431. 2. THREADS: SHALL BE IN ACCORDANCE WITH
24、SCREW-THREAD STANDARDS FOR FEDERAL SERVICES, FED-STD-H28. 3. DIMENSION ARE IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: DECIMALS .010. 4. RETAINING RING AND NUT ARE NOT TO BE ASSEMBLED UNTIL NUT IS INSTALLED ON APPLICABLE COVER. 5. NUT ASSEMBLY MS PART NUMBER SHALL BE MARKED ON TOP OF NUT. 6. .015R OR .015 X 45 CHAMFER PERMISSIBLE ON ALL SHARP EDGES. 7. IMPERFECT THREADS WILL NOT BE PERMITTED ON METALLIC INSERT.
