SIST EN 3013:2001

Aerospace series - Nuts, bihexagonal, self-locking, in heat resisting nickel base alloy NI-P101HT (Waspaloy), silver plated - Classification: 1 210 MPa (at ambient temperature) / 730 °C

This standard specifies the characteristics of self-locking bihexagonal nuts in NI-P101HT, silver plated, for aerospace applications. Classification: 1 210 MPa/730 °C

Luft- und Raumfahrt - Zwölfkantmuttern, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-P101HT (Waspaloy), versilbert - Klasse: 1 210 MPa (bei Raumtemperatur) / 730 °C

Diese Norm legt die Eigenschaften von selbstsichernden Zwölfkantmuttern aus NI-P101HT, versilbert, zur Verwendung in der Luft- und Raumfahrt fest. Klasse: 1 210 MPa / 730 °C

Série aérospatiale - Ecrous bihexagonaux, a freinage interne, en alliage résistant a chaud a base de nickel NI-P101HT (Waspaloy), argentés - Classification: 1 210 MPa (a température ambiante) / 730 °C

La présente norme spécifie les caractéristiques des écrous bihexagonaux, à freinage interne, en NI-P101HT, argentés, pour les applications aérospatiales. Classification: 1 210 MPa / 730 °C

Aerospace series - Nuts, bihexagonal, self-locking, in heat resisting nickel base alloy NI-P101HT (Waspaloy), silver plated - Classification: 1 210 MPa (at ambient temperature) / 730°C

General Information

• Status: Published
• Publication Date: 31-Dec-2000
• ICS: 49.030.30 - Nuts
• 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
• Ref Project: EN 3013:1995 - Aerospace series - Nuts, bihexagonal, self-locking, in heat resisting nickel base alloy NI-P101HT (Waspaloy), silver plated - Classification: 1 210 MPa (at ambient temperature) / 730 °C

Overview

EN 3013:1995 is a CEN aerospace standard that specifies the characteristics of bihexagonal (12‑point), self‑locking nuts manufactured from the heat‑resisting nickel‑base alloy NI‑P101HT (Waspaloy) with a silver plated finish. The standard establishes material, locking function and high‑temperature classification for aerospace fasteners, recorded as Classification: 1 210 MPa (at ambient temperature) / 730 °C.

This standard is focused on ensuring consistent mechanical and environmental performance for high‑temperature aerospace applications where nickel‑base alloys are required.

Key Topics

• Material specification: Use of the heat‑resisting nickel base alloy NI‑P101HT (Waspaloy) for parts requiring high strength and temperature capability.
• Geometry: Bihexagonal (12‑point) nut form factor suited to specific installation tooling and load distribution.
• Locking feature: Self‑locking design to maintain preload under vibration and thermal cycling (typical requirement for aerospace fasteners).
• Finish: Silver plating to provide corrosion resistance and electrical/thermal surface properties where applicable.
• Classification: Defined performance class 1 210 MPa / 730 °C, indicating mechanical/temperature capability used for selection and qualification.
• Intended usage: Components and test criteria appropriate for aerospace series fasteners (mechanical properties, plating acceptance, and functional requirements).

Applications

• Aerospace structural and engine assemblies requiring high‑temperature resistant fasteners.
• Turbine, exhaust, and high‑temperature environments where Waspaloy (NI‑P101HT) offers the required strength and creep resistance.
• Use by fastener manufacturers, aircraft OEMs, maintenance organizations, procurement teams, and quality/inspection bodies specifying or verifying compliant locking nuts.
• Appropriate when a compact bihexagonal nut with self‑locking capability and silver plating is required for high‑reliability aerospace joints.

Who Uses This Standard

• Fastener designers and manufacturers producing self‑locking bihexagonal nuts.
• Aerospace engineers selecting materials and hardware for high‑temperature applications.
• Procurement specialists and QA inspectors ensuring parts meet the EN 3013 classification and finish requirements.
• Maintenance and certification authorities verifying replacement and repair hardware.

Related Standards

• Other EN and ISO standards covering aerospace fasteners, nickel‑base alloys, plating/finish requirements, and mechanical testing (consult current EN/ISO catalogs for specific references).

Keywords: EN 3013, bihexagonal nuts, self‑locking nuts, NI‑P101HT, Waspaloy, silver plated, aerospace standard, heat resisting nickel base alloy, classification 1 210 MPa / 730 °C.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Nuts, bihexagonal, self-locking, in heat resisting nickel base alloy NI-P101HT (Waspaloy), silver plated - Classification: 1 210 MPa (at ambient temperature) / 730°CLuft- und Raumfahrt - Zwölfkantmuttern, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-P101HT (Waspaloy), versilbert - Klasse: 1 210 MPa (bei Raumtemperatur) / 730 °CSérie aérospatiale - Ecrous bihexagonaux, a freinage interne, en alliage résistant a chaud
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