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    ASD-STAN PREN 3226-1992 Aerospace Series Nuts Hexagon Plain Normal Height Normal Across Flats in Steel Cadmium Plated Classification 1 100 MPa (at Ambient Temperature) 235 Degrees.pdf

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    ASD-STAN PREN 3226-1992 Aerospace Series Nuts Hexagon Plain Normal Height Normal Across Flats in Steel Cadmium Plated Classification 1 100 MPa (at Ambient Temperature) 235 Degrees.pdf

    1、CEN PREN+3226 92 m 3404589 0033552 458 m - Edition approved for publication 1992-1 1-1 7 A. E .C. M .A. STAN DAR D NORME A.E.C.M.A. A.E.C.M.A. NORM Comments should be sent within six months after ?he date of publication decision AECMA. Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Mou

    2、lineaux Cdex - FRANCE prEN 3226 Edition P 1 November 1992 EDITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AEROSPATIAL Technopolis - 175. rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cdex - T1 (1) 47 36 98 76 UDC : Key words : ENGLISH VERSION Aerospace series Nuts, hexagon,

    3、 plain. norma normal across flats, height, in steel, cadmium plated Classification : 1 100 MPa (at ambient temperature) / 235 OC Srie arospatiale Luft- und Raumfahrt Ecrous hexagonaux ordinaires, hauteur normale, surplats normaux, mit normaler Schlsseiweite, en acier, cadmis ( temprature ambiante) /

    4、 235 OC Sechskantmuttern, aus Stahl, verkadmet (bei Raumtemperatur) / 235 OC Classification : 1 1 O0 MPa Klasse : 1 1 O0 MPa This .Aerospace Series. pre-standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on gr

    5、een paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Commission following comment by the Member countries. Subsequent to the publication of this pre-standard, the technical content shall not be changed to an extent that interchangeability is affe

    6、cted, physically or functionally. without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee

    7、for Standardization) for final vote. Nota - Extra copies can be supplied by 8 N A E - Technopolis 54 - 199. rue Jean-Jacques Rousseau - 921 38 ISSY LES-MOULINEAUX CEDEX I C3 Chairman Mr. ARENA _- -. - aecma t992 CEN PREN*322b 92 = 3404589 0033553 394 -_ prEN 3226 Page 3 1 Scope and field of applicat

    8、ion This standard specifies the characteristics of plain, hexa onal nuts, normal height, normal across flats, in steel, cadmium plated classification 1 100 MPA $) / 235 OC 2). 2 References IS0 5855-2 IS0 8279 IS0 8788 IS0 9139 EN 2000 EN 2133 EN 2205 EN 2424 EN 2438 EN 2444 EN 2448 TR 3823 Aerospace

    9、 - MJ threads - Part 2 : Limit dimensions for bolts and nuts Aerospace - Plain hexagon nuts with strength classification 1 100 MPa and maximum operating temperature 235 OC Aerospace - Fasteners - Tolerances of form and position for nuts Aerospace - Nuts, plain and slotted - Procurement specification

    10、 3, Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers Cadmium plating of steels with maximum specified tensile strength equal to or less than 1 450 MPa and copper and copper alloys - Aerospace series 4, Aerospace series - Steel FE-PL43 S -

    11、 900 MPa 5 R, r; 1 100 MPa - Bars De 5 40 mm 4, Aerospace series - Identification marking of standard fasteners 4, Aerospace series - Steel FE-PL62 - 900 MPa I R, 2 1 100 MPa - Bars De r; 40 mm 4, Aerospace series - Steel FE-PL711 - 900 MPa I R, I 1 100 MPa - Bars and wires De I 45 mm 4, Aerospace s

    12、eries - Steel FE-PL45 - 900 MPa I R, I 1 100 MPa - Bars De I40 mm 4, Aerospace series - Materials for plain and slotted hexagonal nuts 5, 1 i Corresponds to strength class of the associated bolt, the 1 O0 per cent load of which it is able to withstand, when tested at ambient temperature, without bre

    13、aking or cracking. 2) Maximum temperature that the nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment. 3) In preparation at the date of publication of thi

    14、s standard 4) Published as AECMA standard at the date of publication of this standard 5) Published as AECMA technical report at the date of publication of this standard Previous page is blank CEN PRENr3226 92 = 3404589 O033554 220 -. prEN 3226 Page 4 3 Required characteristics 3.1 Configuration - Di

    15、mensions - Masses See figure 1 and table 1. Dimensions and tolerances are : in conformity with IS0 8279, expressed in millimetres and apply after surface treatment. 3.2 Materials EN 2205, EN 2438, EN 2444, EN 2448 or TR 3823 3.3 Surface treatment EN 2133, 5 pm minimum on threads and all surfaces whi

    16、ch can be contacted by a 20 mm diameter ball. On all other surfaces, a continuous cadmium plating shall be present. -_ CEN PRENx3226 92 3VOV.589 0033555 167 PrEN 3226 Page 5 x-x Break sharp edges 0,l to 0,4 T- 1) These values in micrometres, apl;, “efore surface treatment. The values do not apply to

    17、 threads the surface texture of which will be achieved by usual manufacturing methods. 2) All forms of entry (chamfer or radius) option within these limiting dimensions 3) Diameter M may be tangential to, but shall not intrude on the flats. 4) Applicable to both face 5) From either face 6) Details o

    18、f form not stated are at the manufacturers option. Tolerances of form and position shall be in conformity with IS0 8788. Diameter Thread ) E code I min. I 1) In accordance with IC0 5855-2 Figure 1 6, Table 1 F H L IM( 1 min. 1 max. - min. 0.2 0.3 kgil000 2.4 16,l 5.1 ZEEI 46 12) Lockwire holes not p

    19、rovided for these diameters I I _- I_ - - 1 L CEN PRENJ322b 92 = 3404589 003355b OT3 -_ Diameter code 020 to 030 040 to 070 080 to 160 180 to 240 prEN 3226 Page 6 4 Designation EN 2424 Style F N C A Example : Description block I Identity block NUT , EN3226H060 I i Number of this standard Hole code (see table 2) Diameter code (see table 1) Table 2 Note : If necessary, the originator code 19005 shall be placed between the description block and the identity block. 5 Marking See table 3. Table 3 I 4 6 Technical specification IS0 9 139 except for approval of manufacturers : see EN 2000.


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