Aerospace series - Sleeves, tubular, protruding head, in corrosion resisting steel, passivated (0,25 mm wall thickness)

This document specifies the characteristics and technical requirements for protruding head tubular sleeves, in corrosion resisting steel, which can be plain or provided with a series of annular grooves.
Passivated sleeves are for use in aerospace assemblies whose maximum operating temperature does not exceed 650 °C. It is important that the operating temperatures for aluminium pigmented sleeves do not exceed 230 °C.

Luft- und Raumfahrt - Hülsen, überstehender Kopf, aus korrosionsbeständigem Stahl, passiviert (Wanddicke 0,25 mm)

No Scope available

Série aérospatiale - Douilles tubulaires, tête saillante en acier résistant à la corrosion, passivées (épaisseur de paroi 0,25 mm)

Le présent document spécifie les caractéristiques et les exigences techniques des douilles tubulaires, à tête saillante, en acier résistant à la corrosion, qui peuvent être lisses ou munies d’une série de rainures circulaires.
Les douilles passivées sont prévues pour utilisation dans les assemblages aéronautiques dont la température maximale de fonctionnement ne dépasse pas 650 °C. Il est important de ne pas exposer les douilles pigmentées d’aluminium à des températures de fonctionnement supérieures à 230 °C.

Aeronavtika - Obojke, cevaste, štrleče glave, iz korozijsko odpornega jekla, pasivirane (debelina stene 0,25 mm)

General Information

Status
Not Published
Publication Date
01-Apr-2026
ICS
49.030.99 - Other fasteners
Technical Committee
ASD-STAN - Aerospace
Drafting Committee
ASD-STAN/D 3/S 2 - Fasteners
Current Stage
5060 - Closure of Vote - Formal Approval
Start Date
01-Jan-2026
Completion Date
01-Jan-2026
Ref Project
kSIST FprEN 3278:2025 - Aerospace series - Sleeves, tubular, protruding head, in corrosion resisting steel, passivated (0,25 mm wall thickness)

Relations

Revises
EN 3278:2019 - Aerospace series - Sleeves, tubular, protruding head, in corrosion resisting steel, passivated (0,25 mm wall thickness)
Effective Date
06-Dec-2023

Overview

FprEN 3278 defines requirements for aerospace-series tubular sleeves with a protruding head, manufactured in corrosion-resisting steel, passivated, with a nominal 0,25 mm wall thickness. The standard covers plain and grooved sleeve forms, dimensional limits, surface finish, material options, manufacturing method and marking. These sleeves are specified for use in aerospace assemblies with maximum operating temperatures up to 650 °C (note: aluminium-pigmented sleeves must not exceed 230 °C).

Key topics and technical requirements

  • Configuration & dimensions: Detailed dimensional tables and tolerances for diameter and length codes (examples: diameter codes 040–100; form codes P = plain, G = grooved). Surface roughness requirements are given relative to figures and tables in the standard.
  • Material: Acceptable materials include steels in accordance with EN 2175 or A‑286 CRES (UNS S66286) per SAE AMS 5525, supplied annealed and cold-worked during manufacture.
  • Manufacture: Sleeves shall be produced by a drawing process from sheet or strip to form a one‑piece tubular section and head.
  • Surface treatment:
    • Passivation per EN 2516 or SAE AMS 2700 (method 1 types 6–8 or method 2).
    • Optional aluminium-pigmented coating (code “Z”) per EN 4473 Type IV or NAS4006 Class NC - applied to outer surface; inner coating optional. Aluminium‑pigmented sleeves are temperature‑limited to 230 °C.
  • Surface appearance: Sleeves must be free from cracks, seams and laps; axial drawing flow lines and slight orange‑peel are permissible if continuous at fillet radius.
  • Quality & sampling: Inspection sampling per ISO 2859‑1 (AQL = 1%).
  • Designation & marking: Example designation: SLEEVE EN 3278 P 040 045 Z. Marking follows EN 2424, style G; package quantity must be stated.

Applications and who uses this standard

  • Who: aerospace OEMs, fastener and sleeve manufacturers, procurement teams, design and stress engineers, quality assurance and inspection teams, maintenance/repair organizations.
  • Where: specification of thin‑walled, corrosion‑resistant sleeves used as joining or fastener components in aircraft and aerospace assemblies where controlled dimensions, surface finish and high‑temperature passivation are required.
  • Why: ensures interchangeability, corrosion resistance, traceability and consistent quality for critical aerospace fastening components.

Related standards (normative references)

  • EN 2175, EN 2424, EN 2516, EN 4473
  • ISO 2859‑1 (sampling), SAE AMS 2700, SAE AMS 5525, NAS4006

Keywords: FprEN 3278, aerospace sleeves, tubular sleeves, protruding head, corrosion resisting steel, passivated, 0.25 mm wall thickness, grooved sleeves, aluminium pigmented coating, AQL 1%.

Frequently Asked Questions

FprEN 3278 is a draft published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Sleeves, tubular, protruding head, in corrosion resisting steel, passivated (0,25 mm wall thickness)". This standard covers: This document specifies the characteristics and technical requirements for protruding head tubular sleeves, in corrosion resisting steel, which can be plain or provided with a series of annular grooves. Passivated sleeves are for use in aerospace assemblies whose maximum operating temperature does not exceed 650 °C. It is important that the operating temperatures for aluminium pigmented sleeves do not exceed 230 °C.

This document specifies the characteristics and technical requirements for protruding head tubular sleeves, in corrosion resisting steel, which can be plain or provided with a series of annular grooves. Passivated sleeves are for use in aerospace assemblies whose maximum operating temperature does not exceed 650 °C. It is important that the operating temperatures for aluminium pigmented sleeves do not exceed 230 °C.

FprEN 3278 is classified under the following ICS (International Classification for Standards) categories: 49.030.99 - Other fasteners. The ICS classification helps identify the subject area and facilitates finding related standards.

FprEN 3278 has the following relationships with other standards: It is inter standard links to EN 3278:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

FprEN 3278 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
oSIST prEN 3278:2024
01-november-2024
Aeronavtika - Obojke, cevaste, štrleče glave, iz korozijsko odpornega jekla,
pasivirane (debelina stene 0,25 mm)
Aerospace series - Sleeves, tubular, protruding head, in corrosion resisting steel,
passivated (0,25 mm wall thickness)
Luft- und Raumfahrt - Hülsen, überstehender Kopf, aus korrosionsbeständigem Stahl,
passiviert (Wanddicke 0,25 mm)
Série aérospatiale - Douilles tubulaires, tête saillante en acier résistant à la corrosion,
passivées (épaisseur de paroi 0,25 mm)
Ta slovenski standard je istoveten z: prEN 3278
ICS:
49.030.99 Drugi vezni elementi Other fasteners
oSIST prEN 3278:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 3278:2024
oSIST prEN 3278:2024
DRAFT
EUROPEAN STANDARD
prEN 3278
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2024
ICS 49.030.99 Will supersede EN 3278:2019
English Version
Aerospace series - Sleeves, tubular, protruding head, in
corrosion resisting steel, passivated (0,25 mm wall
thickness)
Série aérospatiale - Douilles tubulaires, tête saillante Luft- und Raumfahrt - Hülsen, überstehender Kopf, aus
en acier résistant à la corrosion (Épaisser de paroi 0,25 korrosionsbeständigem Stahl, passiviert (Wanddicke
mm) 0,25 mm)
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN 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-CENELEC
Management Centre has the same status as the official versions.

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3278:2024 E
worldwide for CEN national Members.

oSIST prEN 3278:2024
prEN 3278:2024 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Required characteristics . 5
4.1 Configuration — Dimensions — Tolerances . 5
4.2 Surface roughness . 5
4.3 Material . 5
4.4 Surface treatment . 5
4.5 Form code . 5
5 Technical requirements . 8
5.1 Manufacture . 8
5.2 Surface appearance . 8
5.3 Sampling . 8
6 Designation . 8
7 Marking . 8
oSIST prEN 3278:2024
prEN 3278:2024 (E)
European foreword
This document (prEN 3278:2024) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 3278:2019.
prEN 3278:2024 includes the following significant technical changes with respect to EN 3278:2019:
— no
...

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