SIST EN 3858:2004

• Abstract:

  This standard specifies the characteristics of thrust wires for titanium alloy pipe couplings, 60°, spherical, in FE-PA 13, for aerospace applications.; NOTE Use with EN 3856.

• Status: Published
• Publication Date: 30-Apr-2004
• ICS: 49.080 - Aerospace fluid systems and components
• Technical Committee: I08 - Imaginarni 08
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-May-2004
• Due Date: 01-May-2004
• Completion Date: 01-May-2004
• Ref Project: EN 3858:2002 - Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy TI-P64001 - Thrust wires in steel FE-PA 13

• Refers: SIST EN 2424:2008 - Aerospace series - Marking of aerospace products
• Effective Date: 28-Jan-2026
• Refers: SIST EN 9100:2018 - Quality Management Systems - Requirements for Aviation, Space and Defense Organizations
• Effective Date: 28-Jan-2026
• Refers: SIST EN 9133:2018 - Aerospace series - Quality Management Systems - Qualification Procedure for Aerospace Standard Products
• Effective Date: 28-Jan-2026
• Refers: SIST EN 2573:2022 - Aerospace series - Steel X6CrNiTi18-10 (1.4541) - Air melted - Softened - Wires - 0,25 mm ≤ De ≤ 3 mm - Rm ≤ 780 MPa
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3856:2004 - Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy TI-P64001 - Swivel nuts for thrust wire
• Effective Date: 28-Jan-2026
• Refers: SIST EN 2491:2011 - Aerospace series - Molybdenum disulphide dry lubricants - Coating methods
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12201-2:2024 - Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 2: Pipes
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12201-3:2024 - Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 3: Fittings
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12201-2:2011+A1:2013 - Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 2: Pipes
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12201-3:2011+A1:2013 - Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 3: Fittings
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12201-2:2011 - Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 2: Pipes
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 13121-2:2004 - GRP tanks and vessels for use above ground - Part 2: Composite materials - Chemical resistance
• Effective Date: 28-Jan-2026

SIST EN 3858:2004 is the Slovenian adoption of EN 3858:2002 for aerospace pipe couplings. It specifies the characteristics of thrust wires in steel FE-PA 13 for 60° spherical pipe couplings in titanium alloy TI-P64001, and it is intended to be used with EN 3856.

What does SIST EN 3858:2004 specify?

SIST EN 3858:2004 specifies the thrust wires used with 60° spherical titanium alloy pipe couplings for aerospace applications. The standard focuses on the wire itself - its size, material, surface condition, marking and quality assurance - so that the wire matches the coupling system.

Clause	What it covers
1 Scope	Application of the standard and the note to use it with EN 3856
2 Normative references	Linked standards for material, coating, marking and quality assurance
3 Required characteristics	Configuration, dimensions, tolerances, mass, material and surface coating
4 Designation	How to identify the product in ordering and documentation
5 Marking	Product marking requirement
6 Quality assurance	Quality system requirement

What are the key requirements of SIST EN 3858:2004?

SIST EN 3858:2004 is mainly a product definition standard. Its key requirements set out what the thrust wire must look like, what it is made from, how it is coated, how it is identified, and how it is controlled in manufacture.

• Clause 3.1 gives the configuration, dimensions, tolerances and masses in Figure 1 and Table 1. The dimensions apply before lubrication, which matters because the part is checked in its manufactured state rather than after any lubricating treatment.
• Clause 3.1 links the wire size to a diameter code and a tube nominal diameter. In practice, the buyer or manufacturer uses the code to select the correct wire for the coupling size.
• Clause 3.1 also points to an obligatory chamfer in the figure. This matters because the part must be formed with the correct edge detail for proper fit and assembly.
• Clause 3.2 specifies EN 2573 for the material. In practice, the wire must be produced from the designated softened and lightly drawn steel before any later surface treatment.
• Clause 3.3 requires EN 2491 for the surface coating and gives Ra 3,2. This means the dry-lubricant coating and surface finish are controlled together, which matters for friction and assembly behavior.
• Clause 4 gives the designation format: THRUST WIRE, the standard number, and the diameter code, with an optional I9005 code. This matters for purchasing and traceability because the designation identifies the exact variant.
• Clause 5 requires marking according to EN 2424, style G. In practice, the product needs standardized identification on the part or packaging.
• Clause 6 points to EN 2000 for quality assurance. This ties manufacture of the wire to an approved aerospace quality system, which is important for controlled production and inspection.

What terms does SIST EN 3858:2004 define?

SIST EN 3858:2004 uses a small set of technical terms that identify the part and its control features.

• Thrust wire - the steel wire element used in the pipe coupling assembly.
• FE-PA 13 - the specified steel material for the thrust wire.
• TI-P64001 - the titanium alloy used for the pipe coupling to which the wire is matched.
• Diameter code - the code used in the designation and Table 1 to match the wire to a tube nominal diameter.
• Surface coating - the dry-lubricant coating applied in accordance with EN 2491.
• Marking style G - the marking format required by EN 2424.
• Quality assurance - the manufacturing control system referenced through EN 2000.

Who uses SIST EN 3858:2004?

SIST EN 3858:2004 is used by aerospace manufacturers, suppliers and inspectors who make or buy pipe coupling components. It is also useful for quality managers and purchasing teams because it gives the exact material, coating, marking and identification rules for the thrust wire. Test and inspection staff use it to verify dimensions, finish and product marking against the agreed coupling size.

What changed in SIST EN 3858:2004 from the previous edition?

SIST EN 3858:2004 is identified as identical with EN 3858:2002.

Which standards are used with SIST EN 3858:2004?

SIST EN 3858:2004 relies on several linked standards to define the wire fully.

• EN 2000 - sets the aerospace quality assurance framework for manufacturers.
• EN 2036 - provides the tolerance basis for the ground round steel bar dimensions used in Table 1.
• EN 2424 - defines the aerospace product marking style, including style G.
• EN 2491 - specifies coating methods for molybdenum disulphide dry lubricants.
• EN 2573 - specifies the FE-PA 13 steel material for the wire.
• EN 3856 - is the related pipe coupling standard that the note says to use with this document.

What does the SIST EN 3858:2004 document contain?

SIST EN 3858:2004 contains one drawing, one dimensional table and a short set of specification clauses. Figure 1 shows the wire configuration and the chamfer, while Table 1 lists the size codes, nominal diameters, tolerances and masses. The other clauses cover material, coating, designation, marking and quality assurance, so the document is mainly for product definition, procurement and conformity control.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy TI-P64001 - Thrust wires in steel FE-PA 13Luft- und Raumfahrt - Rohrverschraubungen mit Kugelbuchsen, 60°, aus Titanlegierung TI-P64001 - Schubdrähte aus Stahl FE-PA 13Série aérospatiale - Raccords sphériques, 60° , en alliage de titane TI-P64001 - Joncs en acier FE-PA13Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy TI-P64001 - Thrust wires in steel FE-PA 1349.080Aerospace fluid systems and componentsICS:Ta slovenski standard je istoveten z:EN 3858:2002SIST EN 3858:2004en01-maj-2004SIST EN 3858:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3858November 2020ICS 49.080English versionAerospace series - Pipe couplings, 60°, spherical, in titaniumalloy TI-P64001 - Thrust wires in steel FE-PA 13Série aérospatiale - Raccords sphériques, 60° , en alliagede titane TI-P64001 - Joncs en acier FE-PA13This European Standard was approved by CEN on 19 August 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2020 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3858:2002 ESIST EN 3858:2004
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