1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 3777:2010Aerospace series Pins, quickrelease, single and doubleacting Technical specificationBS EN 3777:2010 BRITISH STANDARDNational forewordThis British Standard is the U
2、K implementation of EN 3777:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include
3、 all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 71449 8ICS 49.030.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and
4、Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS EN 3777:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3777 October 2010 ICS 49.030.20 English Version Aerospace series - Pins, quick release, single and double acting - Technical specification S
5、rie arospatiale - Broches dmontage rapide, simple et double action - Spcification technique Luft- und Raumfahrt - Kugelsperrbolzen mit Zugauslsung und Zug- Druckauslsung - Technische LieferbedingungenThis European Standard was approved by CEN on 30 July 2010. CEN members are bound to comply with the
6、 CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre
7、or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official v
8、ersions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
9、 Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for
10、CEN national Members. Ref. No. EN 3777:2010: EBS EN 3777:2010EN 3777:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .54 Classification 54.1 General 54.2 Single acting pin 54.3 Double acting pin .55 Requirements .56 Quality assurance 96.1 Approval of the m
11、anufacturer 96.2 Product qualification 107 Acceptance conditions 107.1 Inspection and tests . 107.2 Rejection and re-test 108 Certificate of conformity 109 Filing of documents 10BS EN 3777:2010EN 3777:2010 (E) 3 Foreword This document (EN 3777:2010) has been prepared by the Aerospace and Defence Ind
12、ustries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation
13、 to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. Attention is drawn to the possibility that s
14、ome of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to im
15、plement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
16、Switzerland and the United Kingdom. BS EN 3777:2010EN 3777:2010 (E) 4 1 Scope This standard specifies the characteristics, qualification and acceptance requirements for quick release pins, single and double acting for aerospace applications. It is applicable whenever referenced. 2 Normative referenc
17、es The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2002-001, Aerospace series Metallic materia
18、ls Test methods Part 001: Tensile testing at ambient temperature EN 2002-7, Aerospace series Metallic materials Test methods Part 7: Hardness test 1) EN 3238, Aerospace series Metallic materials Test method Shear test for wires and rivets EN 9100, Quality Management Systems Requirements for Aviation
19、, Space and Defense Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection NASM 1
20、312, Fastener test methods FSC 53GP 2)MIL-PRF-23827C, Grease, aircraft and instrument, gear and actuator screw, NATO code number G-354 3)MIL-STD-810G, Environmental engineering considerations and laboratory tests 3)1) Published as ASD-STAN Prestandard at the date of publication of this standard by A
21、erospace and Defence Industries Association of Europe-Standardization (ASD-STAN) (www.asd-stan.org). 2) Published by: Aerospace Industries Association/ National Aerospace Standards (AIA/NAS) (www.aia.aerospace.org). 3) Published by: Department of Defense (DoD), http:/www.defenselink.mil/. BS EN 3777
22、:2010EN 3777:2010 (E) 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 batch lot inspection batch inspection lot quick release pins of the same type, size, material and surface protection manufactured under the same conditions and presented
23、for inspection of the same size 3.2 surface discontinuities 3.2.1 crack break in the material which may extend in all directions and be intercrystalline or transcrystalline in character 3.2.2 pit void, hole in the surface as caused, for example, by corrosion 3.2.3 score, scratch open surface defect
24、3.2.4 seam unwelded fold which appears as an open defect in the material 4 Classification 4.1 General The quick release pins, single or double acting, can be manufactured with handles of different configuration. 4.2 Single acting pin The release is obtained only by an axial push applied to the actua
25、ting button. 4.3 Double acting pin The release is obtained only when the spindle has been moved to a release position by an axial push or pull on the actuating button or handle. 5 Requirements See Table 1. BS EN 3777:2010EN 3777:2010 (E) 6 Table 1 Clause Characteristics Requirements Inspection and t
26、est method Q aA b5.1 Materials In accordance with the product standard or definition document. Chemical analysis or certificate of conformity issued by the manufacturer of the semi-finished product X X 5.2 Dimensions and tolerances In accordance with the product standard or definition document. Stan
27、dard gauging X X 5.3 Masses In accordance with the product standard or definition document. Suitable methods X X 5.4 Marking In accordance with the product standard or definition document. It shall be legible and shall not adversely affect the material or the functioning of the pins. Visual examinat
28、ion X X 5.5 Surface appearance Pins shall be free of surface discontinuities liable to have an adverse effect on their characteristics and endurance. See 3.2 for definitions. Suitable measuring instruments X X 5.6 Surface coating 5.6.1 Presence Applied at the locations specified in the product stand
29、ard or definition document. Visual examination X X 5.6.2 Type cIn accordance with the definition document. Visual examination or inspection by chemical reagent in case of doubt (method agreed upon between the manufacturer and the user) X X 5.6.3 Thickness In accordance with the definition document.
30、Device for measuring the thickness of surface coatings. In case of doubt, inspect defective nuts under low magnification after sectioning. X X 5.7 Heat treatment In accordance with the product standard or definition document Standard gauging X X 5.8 Hardness In accordance with the product standard o
31、r definition document. Shank and balls are to be checked, specifically. Test according to EN 2002-7. X 5.9 Corrosion Pins shall be subjected to the corrosion test. The same pins shall be then tested for conformance to the release actuating force values specified in Table 2. According to the NASM 131
32、2 test 1 salt-spray. Upon completion of the test, the pins shall be tested as defined in 5.11 and 5.12. X continued BS EN 3777:2010EN 3777:2010 (E) 7 Table 1 (continued) Clause Characteristics Requirements Inspection and test method Q aA b5.10 Sand and dust Pins shall be subjected to the sand and du
33、st test. The same pins shall then be tested for conformance to the release actuating force values specified in Table 2. According to the MIL-STD-810 method 510.1. Upon completion of the test, the pins shall be tested as defined in 5.11 and 5.12. X 5.11 Release mechanism The release mechanism shall a
34、utomatically return and remain in the locked position. Mount the pin in a fixture conforming to the Figure 3. The release mechanism actuating force values shall be within the range specified in Table 2. Upon completion of the test, the pins shall be tested as defined in 5.12. X X 5.12 Locking elemen
35、t When the pin release button is depressed to a release position, the pin shall be capable of being pulled out from the bushing of fixture with a force that is twice the maximum release mechanism force in Table 2. The locking device of double acting quick release pins shall withstand the minimum ten
36、sile values specified in Table 2 without failure. Mount the pin in a fixture conforming to the Figure 2. When the pin release button is depressed to the release position, the pin shall be capable of being pulled from the bushing. X X 5.13 Attaching link, ring, handle The complete attachment shall re
37、main intact when subjected to the tensile strength test. Deformation of the link, ring or flag attachment shall not constitute failure. The release mechanism actuating force shall again be measured for conformance to the requirements of Table 2 (see 5.11). Mount the pin in accordance with the Figure
38、 3. Apply a force of 44 N between the link or ring on the handle and the release mechanism. When a flag is attached the same force shall be applied between the flag and the release link or ring. All parts shall show no evidence of failure. X 5.14 Ball retention Ball shall be retained in the shank wh
39、en subjected to the minimum push out values specified in Table 2. The spindle and one ball shall be removed from the test sample. The sample shall be placed on a “V“ block with the remaining ball in the staked hole placed downwards in a position not allowing contact with any portions of the “V“ bloc
40、k. A mandrel connected to a direct-reading load indicator shall be inserted through the empty top hole and the load specified in Table 2 applied against the ball in the bottom staked hole. X continued BS EN 3777:2010EN 3777:2010 (E) 8 Table 1 (continued) Clause Characteristics Requirements Inspectio
41、n and test method Q aA b5.15 Operability The release mechanism shall be operable while the pin is shear loaded to the following percentages of the minimum strengths specified in Table 2.050 pin diameter code = 35 % 060 to 200 pin diameter codes = 50 %220 to 270 pin diameter codes = 40 %Mount the pin
42、 in a fixture conforming to Figure 1. The requirements shall be in accordance with values requested for the respective dimensions. X 5.16 Endurance The pin shall function satisfactorily after the release mechanism is subjected to 5 000 cycles of operation. Mount the pin in a fixture conforming to Fi
43、gure 3. The actuating force shall be within the values in Table 2. One cycle of operation shall be as follows: For single acting pins, from locked position, push to unlocked position, release to locked position. For double acting pins, from the locked position, push to the unlocked position, release
44、 to locked position, then from locked position, pull to unlocked position and release to locked position. Upon completion of the test, the pins shall be tested as defined in 5.11 and 5.12. 5.17 Straightness The maximum permissible measured deviation from straightness of the shank shall be in accorda
45、nce with Table 3. An acceptable method of determining shank straightness is by rolling the pin, with the locking balls retracted, on a surface plate and measuring the point of greatest deviation with a feeler gauge. X 5.18 Pin shear strength The minimum double shear strength shall conform to the val
46、ues of Table 2. Test according to EN 3238. Use fixture conforming to Figure 1. X 5.19 Pin tension strength The minimum tensile strength shall conform to the values of Table 2. Test according to EN 3238. Use fixture conforming to Figure 2. X 5.20 Handle tensile strength The handle when subjected to 2
47、,2 kN tensile load, shall show no evidence of failure or distortion. Test according to EN 2002-001. Use fixture conforming to Figure 4. X continued BS EN 3777:2010EN 3777:2010 (E) 9 Table 1 (concluded) Clause Characteristics Requirements Inspection and test method Q a A b 5.21 Temperature Pins shall
48、 function satisfactorily and be hand operable at temperatures from 54 C to 93 C. Pin shall be held at a temperature of not less than 54 C for 1 h, and at a temperature of not less than 93 C for 1 h. Upon completion of the test, the pins shall be tested as defined in 5.11 and 5.12. X 5.22 Preservatio
49、n and packaging Pins shall be cleaned so that they are free from dirt and foreign matter. Grease with lubricant MIL-PRF-23827. Pins shall be wrapped with a barrier to ensure adequate protection against damage during handling transportation and storage. Visual examination X 5.23 Packing Pins shall be delivered in strong, durable and sealed packages, capable of protecting from physical and corrosive deterioration. Additional packaging requirements shall be specified in the order. Each package shall con
