1、 AEROSPACE STANDARD LIGHT ASSEMBLY, COCKPIT, FIXED AS25027Copyright 2013 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, photocopying, recording, or otherwise, with
2、out 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 1999-07REVISED 2013-03THIRD ANGLE PROJECTION CUSTODIAN: A-20/A-20
3、A REV.A FEDERAL SUPPLY CLASS 6220 AS25027SHEET 1 OF 3 REV. A PROCUREMENT SPECIFICATION: NONESAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of technicalandengineering sciences. Theuse ofthis report is entirely voluntary, andits applicability and su
4、itability forany particular use,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised, reaffirmed, stabilized, orcancelled. SAE invites yourwrittencomments andsuggestions. SAE v
5、alues your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS25027A RATIONALE THE PURPOSE OF THIS REVISION IS TO RELAX REQUIREMENTS ON NON-CRITICAL DIMENSIONS, TO ADD NVIS WHITE (-6). NOTICE THE INITIAL SAE PUBLICATION OF THIS DOCUMENT WAS TAKEN
6、 DIRECTLY FROM U.S. MILITARY STANDARD MS25027F. THIS SAE STANDARD MAY RETAIN THE SAME PART NUMBERS ESTABLISHED BY THE ORIGINAL MILITARY DOCUMENT. ANY REQUIREMENTS ASSOCIATED WITH QUALIFIED PRODUCTS LISTS (QPL) MAY CONTINUE TO BE MANDATORY FOR DOD CONTRACTS. REQUIREMENTS RELATING TO QPLS HAVE NOT BEE
7、N ADOPTED BY THE SAE FOR THIS STANDARD AND ARE NOT PART OF THIS SAE DOCUMENT. AEROSPACE STANDARD AS25027 SHEET 2 OF 3 REV. A LIGHT ASSEMBLY, COCKPIT, FIXED FIGURE 1 - FIXED COCKPIT LIGHT ASSEMBLY AEROSPACE STANDARD AS25027 SHEET 3 OF 3 REV. A LIGHT ASSEMBLY, COCKPIT, FIXED NOTES: 1. MATERIAL: NONMAG
8、NETIC MATERIALS SHALL BE USED FOR ALL PARTS OF THE ASSEMBLY. 2. REMOVE ALL BURRS AND BREAK ALL SHARP EDGES 3. DIMENSIONS IN INCHES UNLESS OTHERWISE SPECIFIED, TOLERANCES: DECIMALS .016. DIMENSIONING AND TOLERANCING IN ACCORDANCE WITH ANSI Y.14.5 4. (a) FOR INSTALLATION, CLEARANCE SHALL BE ALLOWED FO
9、R THE MAXIMUM OVERALL DIMENSIONS SHOWN ON THIS DRAWING (b) LIGHT ASSEMBLY SHALL BE DESIGNED TO ACCOMMODATE A MINIATURE BAYONET BASE LAMP WITH T-4-1/2 BULB WITH 1-3/8 INCH M.O.L. AND 11/16 INCH L.C.L., 6 CP 28 VOLT, 500 HOUR LIFE LAMP MS25069-1495 OR AS SPECIFIED BY THE PROCURING ACTIVITY. (c) LAMP H
10、OUSING AND LAMP SHALL BE EASILY REMOVABLE TO PERMIT LAMP REPLACEMENT, WITHOUT THE USE OF TOOLS. (d) THE ASSEMBLY SHALL BE PROVIDED WITH A SOCKET DESIGNED TO HOLD THE LAMP SPECIFIED AND SHALL POSITION THE LAMP SO THAT ITS LIGHT CENTER IS BEHIND THE CENTER OF THE COVER GLASS. (e) POWER TO LAMP SHALL B
11、E PROVIDED BY LEAD TO BE SOLDERED INTO CENTER CONTACT CIRCUIT. GROUND RETURN THROUGH MOUNTING BRACKET. (f) NOTE (f) DELETED. (g) THE WEIGHT OF THE ASSEMBLY, INCLUDING LAMP SHALL NOT EXCEED 0.2 POUNDS. (h) RETAINER CLIP AND LOCKWASHER MAY BE INCORPORATED INTO ONE PART. 5. (a) NIGHT VISION IMAGING SYS
12、TEM (NVIS) COMPATIBLE FILTER REQUIREMENTS. (-5). (b) POLYCARBONATE OR GLASS FILTERS USED IN ANVIS COMPATIBLE FLOODLIGHT ASSEMBLY SHALL HAVE A NOMINAL LENGTH OF .995 INCH AND A WIDTH OF .765. (c) POLYCARBONATE OR GLASS FILTERS USED IN NVIS COMPATIBLE FLOODLIGHT ASSEMBLY SHALL HAVE ALL CORNERS MINIMUM
13、 .064 ROUND. (d) SEE MIL-L-6723, FOR ADDITIONAL ANVIS REQUIREMENTS. (e) SEE MIL-L-85762A OR MIL-STD-3009, FOR ADDITIONAL NVIS GREEN “A“ REQUIREMENTS. (f) SEE MIL-STD-3009, FOR ADDITIONAL NVIS WHITE REQUIREMENTS. (-6). 6. A CHANGE BAR (l) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER
14、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 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.
