SIST EN 3777:2012

Aerospace series - Pins, quick release, single and double acting - Technical specification

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.

Luft- und Raumfahrt - Kugelsperrbolzen mit Zugauslösung und Zug- Druckauslösung - Technische Lieferbedingungen

Diese Norm legt die Merkmale, Qualifizierung und Abnahmeanforderungen für Kugelsperrbolzen mit
Zugauslösung und Zug- und Druckauslösung zur Anwendung in der Luft- und Raumfahrt fest.
Sie ist anwendbar, wenn auf sie verwiesen wird.

Série aérospatiale - Broches à démontage rapide, simple et double action - Spécification technique

Aeronavtika - Zatiči s sistemom za hitro odpiranje z enojnim ali dvojnim delovanjem - Tehnična specifikacija

Ta standard določa lastnosti, kvalifikacijo in zahteve za odobritev za zatiče s sistemom za hitro odpiranje z enojnim ali dvojnim delovanjem za uporabo v aeronavtiki. Velja, kadar je naveden.

General Information

• Status: Published
• Publication Date: 27-Nov-2011
• ICS: 49.030.40 - Pins, nails
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Nov-2011
• Due Date: 29-Jan-2012
• Completion Date: 28-Nov-2011
• Ref Project: EN 3777:2010 - Aerospace series - Pins, quick release, single and double acting - Technical specification

Overview

EN 3777:2010 - "Aerospace series - Pins, quick release, single and double acting - Technical specification" - is a CEN (ASD-STAN) standard that defines the characteristics, qualification and acceptance requirements for quick‑release pins used in aerospace applications. It applies wherever referenced and sets mandatory inspection, testing and documentation practices for manufacturers, purchasers and quality teams.

Key topics and technical requirements

• Types defined
  • Single acting: release by axial push on the actuating button.
  • Double acting: release by axial push or pull on the actuating button/handle.
• Materials & heat treatment
  • Materials shall conform to the product definition; chemical certificates or analyses are required.
• Dimensions, tolerances and marking
  • Gauging and visual inspection ensure conformance; marking must be legible and non‑detrimental.
• Surface condition and coatings
  • Pins must be free of cracks, pits, scores or seams; coatings (e.g., electrolytic platings) inspected for presence, type and thickness.
• Mechanical performance
  • Shear and tensile strengths, locking-element retention, ball retention and handle tensile strength are verified per specified tests (see Table 2 & 3 in the standard).
  • Release mechanism actuating forces and operability under load are checked; endurance is verified with 5 000 cycles.
• Environmental tests
  • Corrosion: salt‑spray test per NASM 1312; subsequent re‑verification of actuating force.
  • Sand & dust: MIL‑STD‑810 method 510.1; followed by performance checks.
  • Temperature: functional verification at −54 °C to +93 °C.
• Acceptance & quality assurance
  • Lot sampling follows ISO 2859‑1; manufacturer approval and product qualification per EN 9100 and EN 9133.
  • Each lot must be accompanied by a certificate of conformity and test records retained for at least five years.

Applications and who uses this standard

• Primary users
  • Aerospace OEMs, component and fastener manufacturers, procurement/specification engineers, quality assurance teams, and maintenance organizations.
• Practical uses
  • Specification and procurement of quick‑release pins for removable panels, access doors, fixtures and other assemblies where controlled release under defined loads and environments is critical.
  • Designing inspection and acceptance procedures for incoming supplies and for supplier qualification.

Related standards (normative references)

• EN 2002‑001 (tensile testing), EN 2002‑7 (hardness), EN 3238 (shear test)
• EN 9100 (QMS for aviation) and EN 9133 (qualification procedure)
• ISO 2859‑1 (sampling procedures)
• NASM 1312 (salt spray), MIL‑PRF‑23827C (lubricant), MIL‑STD‑810G (environmental testing)

EN 3777:2010 is essential when procuring or qualifying quick‑release pins for aerospace use - ensuring consistent mechanical performance, environmental resilience and traceable quality. Keywords: EN 3777:2010, quick release pins, aerospace standard, single acting, double acting, qualification, acceptance testing, corrosion test, MIL‑STD‑810, EN 9100.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.GYRMQLPLuft- und Raumfahrt - Kugelsperrbolzen mit Zugauslösung und Zug- Druckauslösung - Technische LieferbedingungenSérie aérospatiale - Broches à démontage rapide, simple et double action - Spécification techniqueAerospace series - Pins, quick release, single and double acting - Technical specification49.030.40Pins, nailsICS:Ta slovenski standard je istoveten z:EN 3777:2010SIST EN 3777:2012en,de01-januar-2012SIST EN 3777:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3777
October 2010 ICS 49.030.20 English Version
Aerospace series - Pins, quick release, single and double acting - Technical specification
Série aérospatiale - Broches à démontage rapide, simple et double action - Spécification technique
Luft- und Raumfahrt - Kugelsperrbolzen mit Zugauslösung und Zug- Druckauslösung - Technische LieferbedingungenThis European Standard was approved by CEN on 30 July 2010.
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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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 CEN national Members. Ref. No. EN 3777:2010: ESIST EN 3777:2012

1) Published as ASD-STAN Prestandard at the date of publication of this standard by Aerospace 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/. SIST EN 3777:2012

open surface defect 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 actuating 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. SIST EN 3777:2012

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. Standard 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 examination 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 standard or definition document. Visual examination X X 5.6.2
Type c In 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. 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 or 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 actuatin
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