इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 15308 (2003): Aerospace - Inserts, Self-Locking with MJ Threads, Closed Type, in Metallic Material, Coated or Uncoated - Dimensions [TED 14: Aircraft and Space Vehicles] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” .. ..— IS 15308:2003 .. ISO 13596:2000 Indian Standard AEROSPACE— INSERTS, SELF-LOCKING WITH MJ THREADS, CLOSED TYPE, IN METALLIC MATERIAL, COATED OR UNCOATED— DIMENSIONS Ics 49.030.99 @BIS 2003 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 February 2003 Price Group 2 Aircraft, Space Vehicles and Aircraft Electrical Equipment Sectional Committee, TED 14 —. —— NATIONAL FOREWORD This Indian Standard which is identical with ISO 13596:2000 ‘Aerospace — Inserts, self-locking, with MJ threads, closed type, in metallic material, coated or uncoated — Dimensions’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Aircraft, Space Vehicles and Aircraft Electrical Equipment Sectional Committee and approval of the Transport Engineering Division Council. The text of the International Standard has been approved as suitable for publication as Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following: a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’. b) Comma (,) has been used as adecimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker. In this adopted standard, reference appears to International Standard for which Indian Standard also exists. The corresponding Indian Standard, which is to be substituted in its place, is given below along with its degree of equivalence for the edition indicated: International Standard Corresponding Indian Standard Degree of Equivalence ISO 5855-2: 1999 Aerospace— IS 10980 (Part 2) :1984 Specification for Technically MJ threads—Part 2: Limit aerospace bolts and nuts (MJ threads) : equivalent dimensions for bolts and nuts Part 2 Dimensions for bolts and nuts For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result ofatest or analysis, shall be rounded off inaccordance with IS 2:1960 ‘Rules for rounding off numerical values (revised) ’.The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. .— IS 15308:2003 — ISO 13596:2000 Indian Standard AEROSPACE— INSERTS, SELF-LOCKING WITH MJ THREADS, CLOSED TYPE, IN METALLIC MATERIAL, COATED OR UNCOATED—DIMENSIONS 1 Scope This International Standard specifies the dimensions of closed inserts, with self-locking MJthreads, in metallic material, coated or uncoated, for honeycomb and composite materials. The classification referring to strength and temperature, depending onthe core material and potting compound, is notspecified. This International Standard isonly applicable to the compilation ofaerospace product standards. 2 Normative reference The following normative document contains provisions which, through reference inthis text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications ao not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers ofcurrently valid I.ntemational Standards. ISO 5855-2:1999, Aerospace — MJ threads — Part2: Limit dimensions forbolts and nuts. 3 Configuration and dimensions See Figure 1 and Table 1. Dimensions and tolerances are expressed inmillimetres. They apply to inserts after any surface coating(s). IS 15308:2003 — ISO 13596:2000 1 t- Remove sharp edges 0,1 to 0 4 b’ ~ 0,2 A Details ofform notstated are at the manufacturer’s discretion. Key 1 Thread 2 Pitchdiameter 3 Shankdeformedthisareatoprovide threadlock 4 AntirotationfeatureatmanMacturer'soptiononshank orbotiomflange 5 Pottingandventhole a These values,inmicrometres,arevalid ptiortoanysutiace coating(s).Thevalues donotapply tothreads havingasudace textureobtainedbyusualmanufacturingmethods. Figure 1 I IS 15308:2003 — ISO 13596:2000 Table 1 Diameter Thread a A B c D Eb F code o * 0,25 +0,25 -0,25 =$ min. nom. tot. 030 MJ3 X 0,5-4H6H 3 6 9or120r15 or190r220r25 040 MJ4 X 0,7-4H6H 14,2 9,3 4 8 2,4 * 0,25 120r150r19 050 MJ5 X 0,8-4H6H 5 10 or 22 or 25 150r19 060 MJ6 x 1-4H5H 17,5 11,9 6 12 or22 or25 a InaccordancewithISO5855-2 b Effectivelengthofaboltthreadengagement 4 Example of application See Figure 2. 1 2 H \/ 3 Key 1 Washar 2 Bolt 3 Pottingcompound 4 Attachedcomponent 5 Sandwichpanel 6 Insert Figure 2 . 3 —. Bureau of Indian Standards BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publication), BIS. Review of Indian Standards ! Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; astandard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of ‘BIS Catalogue’ and ‘Standards: Monthly Additions’. This Indian Standard has been developed from Dot: No. TED 14 (376). 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