413 NTERNATIONAL STANDARD (TSo INTERNATIONAL ORGANIZATION FOR STANDARDIZATION -MEKIYHAPOIHA OPIAHW3ALIM HIO CTAHIAPTM3ALIM·ORGANISATION INTERNATIONALE DE NORMALISATION Aircraft -- Heads of lubricating nipples Aéronefs-Tétesdegraisseurs First edition-1974-11-01 ISO 413-1974 (E) UDC 629.7.063.7-725 Ref.No. ISO 413-1974 (E) Descriptors : aircraft equipment, lubrication systems, grease nipples, dimensions. Pricebased on1page uvintiInft FOREWORD Iso (the International Organization for Standardization) is a worldwide federation of national standards institutes (IsO Member Bodies). The work of developing International Standards is carried out through Iso Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the ISo Council. International Standard iso 413(formerlydraftInternational Standard ISO/DIS 2134) was drawn up by Technical Committee ISO/TC 20, Aircraft and space vehicles, and circulated to the Member Bodies in December 1970. It has been approved by the Member Bodies of the following countries : Austria Israel Spain Belgium Italy Turkey Canada ueder United Kingdom Czechoslovakia Netherlands U.S.A. Egypt, Arab Rep. of New Zealand U.S.S.R. France South Africa, Rep. of No Member Body expressed disapproval of the document. ThisInternationalStandardcancelsand replacesISORecommendationR413-1965 of which it constitutes a technical revision. International Organization for Standardization, 1974 Printed in Switzerland E'eqr[tkijvgf'd["WPG."Et" gpqxc.8"'4:226"Ocftkf.'Urck ISO413-1974 (E) INTERNATIONAL STANDARD Aircraft -- Heads of lubricating nipples 1 SCOPEANDFIELDOFAPPLICATION lubricating gun connector coupling and uncoupling requirements shown in figure 2. It should be noted that, in ThisInternational Standard specifies the envelope uncoupling, the connector has to be tilted up to 25° in any dimensions for the heads of aircraft lubricating nipples of one radial direction. the axial type and determines the clearance space which shall be provided in the region of the lubricating nipple to allow the lubricating gun to be connected, and the TABLE-Dimensions operating angle dimensions for the lubricating process. Dimension mm in 2 DIMENSIONS ΦA 6,86 max. 0.270 max. 6,30 min. 0.248 min. 2.1 The envelope dimensions for the heads of aircraft $B 5,33 max. 0.210max lubricatingnipples of the axial type are shown infigure 1. 3,57 min. 0.140 min. The tip design of the nipples is optional provided the profile remains within the envelope shown. 5,95 max. 0.234 max. 4,44 min. 0.175 min. 2.2 The design detail of the tip shall be such that the nipple will admit lubricant when the lubricating gun 2,79 max. D 0.110max. 1,98 min. 0.078 min. between the axis of the connector and the axis of the tip, in any radial direction, without leakage occurring between the E 2,38 0.094 tip and the connector. F rad. 3,43 0.135 2.3 Sufficient clearance space shall be provided around G rad. 0,81 and approaching the lubricating nippte to allow for the 0.032 ΦA max. @A min. B max. @ B min. 25°max.disengaging Maximum profile angle (see 2.3) (broken line) E Minimum profile (full line) E Cmin. C max. Head profile FIGURE 2-Lubricating gun connector coupling FIGURE1-Head of lubricating nipple anduncoupling requirements intiInf 1