SIST EN 2942:2001
(Main)Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH2801 (Inconel X750), silver plated
Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH2801 (Inconel X750), silver plated
This standard specifies the characteristics of self-locking, helical coil, screw thread inserts in NI-PH2801, silver plated, for aerospace applications. Maximum test temperature: 550°C.
Luft- und Raumfahrt - Draht-Gewindeeinsätze, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-PH2801 (InconelX750), versilbert
Diese Norm legt die Eigenschaften von selbstsichernden Draht-Gewindeeinsätzen aus NI-PH2801, versilbert, zur Verwendung in der Luft- und Raumfahrt fest. Maximale Prüftemperatur: 550°C.
Série aérospatiale - Filets rapportés, a freinage interne, en alliage résistant a chaud a base de nickel NI-PH2801 (Inconel X750), argentés
La présente norme spécifie les caractéristiques des filets rapportés, à freinage interne, en NI-PH2801, argentés, pour les applications aérospatiales. Température maximale d'essai: 550°C.
Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH2801 (Inconel X750), silver plated
General Information
- Status
- Published
- Publication Date
- 31-Dec-2000
- Technical Committee
- SS SPL - Technical Board for the general field
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Jan-2001
- Due Date
- 01-Jan-2001
- Completion Date
- 01-Jan-2001
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 18-Jan-2023
- Effective Date
- 29-Jul-2020
Overview
SIST EN 2942:2001 defines the requirements and characteristics for self-locking, helical coil screw thread inserts made from the high heat-resistant nickel base alloy NI-PH2801 (Inconel X750), with a silver-plated finish. Developed by the Slovenski inštitut za standardizacijo (SIST), this standard is tailored for aerospace applications where reliability, high-temperature performance, and resistance to corrosion are critical. The inserts covered by this standard are designed to perform at temperatures up to 550°C, ensuring secure and robust threaded connections in demanding environments.
Key Topics
- Material Specification: The standard covers inserts manufactured from NI-PH2801 (also known as Inconel X750), a nickel-chromium alloy notable for its outstanding resistance to heat and oxidation. The inserts are silver-plated to enhance corrosion resistance and reduce the risk of thread galling.
- Self-Locking Design: Emphasizes self-locking capability, vital for applications subject to vibration or thermal cycling, which helps prevent loosening and increases operational safety.
- Helical Coil Construction: Specifies a helical coil form factor, offering weight savings, high strength-to-weight ratio, and improved stress distribution when compared to traditional threaded inserts.
- Temperature Resistance: Defines suitability for use in assemblies exposed to temperatures up to 550°C, suitable for high-performance aerospace systems.
Applications
SIST EN 2942:2001 is widely applicable in the aerospace industry and in other sectors where high reliability at elevated temperatures is required. Key practical uses include:
- Aircraft Engines and Powerplants: Ensures secure threads in engine components exposed to extreme heat, vibration, and thermal cycling.
- Aerospace Structural Assemblies: Provides durable threaded connections in airframes and related hardware where failure is not an option.
- Spacecraft Components: Suitable for use in orbital and launch vehicle assemblies where thread security is paramount in fluctuating thermal environments.
- Other High-Temperature Machinery: Can be utilized in automotive, energy, and industrial sectors where similar material and performance requirements are needed.
These inserts are ideal for applications requiring frequent maintenance or replacement, as they help preserve and reinforce parent materials, preventing thread stripping and extending component lifespan.
Related Standards
For comprehensive design and procurement, consider the following related international standards:
- EN 2942:1998: The European source standard, equivalent to SIST EN 2942:2001, detailing similar technical requirements for aerospace inserts.
- ISO 1222: Focuses on general specifications for wire thread inserts.
- EN 2997: Covers threaded fasteners and inserts used in aerospace engine applications.
- SIST EN Standards for Bolts, Screws, and Studs: Refer to additional SIST EN documents classified under ICS 49.030.20 for related fastener specifications.
Practical Value
Implementing SIST EN 2942:2001 ensures compatibility and safety by using standardized inserts tailored for extreme aerospace environments. Adoption leads to:
- Improved Joint Integrity: Reduces the risk of thread failure in mission-critical components.
- Streamlined Maintenance: Allows for cost-effective repair and replacement of damaged threads.
- Global Interchangeability: Aligns product design and procurement with internationally recognized practices, supporting global supply chains in the aerospace sector.
For procurement engineers, designers, and quality assurance professionals, adherence to SIST EN 2942:2001 is essential to meet both regulatory and operational requirements in high-demand industries.
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Frequently Asked Questions
SIST EN 2942:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH2801 (Inconel X750), silver plated". This standard covers: This standard specifies the characteristics of self-locking, helical coil, screw thread inserts in NI-PH2801, silver plated, for aerospace applications. Maximum test temperature: 550°C.
This standard specifies the characteristics of self-locking, helical coil, screw thread inserts in NI-PH2801, silver plated, for aerospace applications. Maximum test temperature: 550°C.
SIST EN 2942:2001 is classified under the following ICS (International Classification for Standards) categories: 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 2942:2001 has the following relationships with other standards: It is inter standard links to SIST EN 2424:2008, SIST EN 2786:2008, SIST EN 2943:2024, SIST EN 3044:2001, SIST EN 2945:2001, oSIST prEN 2942:2022, oSIST prEN 2942:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 2942:2001 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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH2801 (Inconel X750), silver platedLuft- und Raumfahrt - Draht-Gewindeeinsätze, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-PH2801 (InconelX750), versilbertSérie aérospatiale - Filets rapportés, a freinage interne, en alliage résistant a chaud a base de nickel NI-PH28
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