DIN 65151 2002-08 PDF

Full title and description

STB DIN 65151: 2002-08 — Aerospace series: Dynamic testing of the locking characteristics of fasteners under transverse loading conditions (vibration test). (German title: Luft- und Raumfahrt - Dynamische Prüfung des Sicherungsverhaltens von Schraubverbindungen unter Querbeanspruchung (Vibrationsprüfung)).

Abstract

This document defines a comparative vibration test method for evaluating the locking (anti‑loosening) behaviour of threaded fasteners used in aerospace applications when subjected to transverse (cross‑wise) dynamic loading. It is intended to provide repeatable test conditions for comparative assessment of locking devices and fastener combinations rather than to predict absolute in‑service behaviour.

General information

• Status: Current / Active (latest published edition available).
• Publication date: 2002-08 (published August 2002; often shown as 01/08/2002).
• Publisher: Deutsches Institut für Normung (DIN).
• ICS / categories: Aircraft and space vehicle engineering — ICS 49 (aerospace engineering / fasteners & components).
• Edition / version: Edition 2002-08 (2002, August).
• Number of pages: 5 pages (concise technical specification).

Scope

The standard specifies the test arrangement, procedure, test conditions and evaluation method for a dynamic (vibration) test to assess the tendency of aerospace fasteners and locking elements to loosen under transverse dynamic loads. The test is intended for comparative assessments of fastening/locking combinations under defined laboratory conditions and does not by itself constitute a complete statement about in‑service performance of a bolted assembly.

Key topics and requirements

• Definition of test objective: comparative evaluation of locking behaviour under transverse vibration.
• Short description of the test method and required test apparatus (fixture, excitation method, instrumentation).
• Detailed test setup and specimen mounting requirements to ensure repeatability.
• Specified test conditions (vibration amplitude/frequency ranges, number of cycles, environmental notes where applicable).
• Evaluation and acceptance: measurement of loosening (loss of preload / rotation) and reporting format.
• Limitations and intended use: guidance that results are comparative and influenced by many parameters; not a direct guarantee of in‑service behaviour.

Typical use and users

Used by aerospace design and quality engineers, fastener and locking‑device manufacturers, independent test laboratories, and maintenance/airworthiness organisations to compare locking solutions, qualify fastener/locking combinations, and inform design or procurement decisions for aircraft and space applications.

Related standards

The 2002 edition replaced earlier national drafts/editions (e.g., DIN 65151:1994). DIN 65151 is part of a group of DIN aerospace fastener standards (other nearby DIN 6517x / 6518x series items cover related fastener specifications and tests). Users often reference adjacent DIN fastener standards and industry aerospace fastener specifications when applying this test method.

Keywords

aerospace; fasteners; locking; anti‑loosening; vibration test; transverse loading; dynamic testing; bolted joint; comparative evaluation; DIN 65151.

FAQ

Q: What is this standard?

A: DIN 65151:2002-08 is a DIN aerospace standard that defines a vibration (dynamic) test to evaluate the locking or anti‑loosening characteristics of threaded fasteners under transverse loading conditions.

Q: What does it cover?

A: It covers the test purpose, a brief description of the method, test fixture and setup, execution of the test, test conditions and evaluation/assessment criteria for measuring loosening (e.g., loss of preload or rotation). The standard emphasises that results are comparative and influenced by many parameters.

Q: Who typically uses it?

A: Aerospace manufacturers, fastener and locking‑device suppliers, independent test labs, and certification/maintenance teams use this standard for comparative testing and qualification of fastening systems.

Q: Is it current or superseded?

A: The 2002‑08 edition is the published DIN edition that replaced earlier drafts/editions (for example the 1994 draft). Commercial distributors and standards stores list the 2002 edition as the current available edition. Users should check with DIN or an official standards supplier for any amendments or later revisions.

Q: Is it part of a series?

A: Yes — it belongs to the DIN aerospace series and is related to other DIN fastener and aerospace testing documents (DIN 651xx family). It is commonly handled alongside other DIN aerospace standards when specifying or testing fasteners.

Q: What are the key keywords?

A: Aerospace, fastener testing, locking characteristics, vibration test, transverse loading, loosening, dynamic test, bolted joint.