SIST EN 3645-009:2019

Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 009: Receptacle, round flange, jam nut mounting - Product standard

This European Standard specifies the characteristics of jam nut mounting receptacles in the family of
circular, electrical connectors, with triple start threaded coupling.
It applies to models in Table 3.
For plugs and protective covers, see EN 3645-006, EN 3645-008, EN 3645-011 and EN 3645-012 respectively.
For sealing plugs and cable outlet accessories associated with this receptacle, see EN 3645-002.
These connectors are derived from and interchangeable with models W, F, J, M, Z, T and K in specification
MIL-DTL-38999/24.

Luft- und Raumfahrt - Elektrische Rundsteckverbinder, kontaktgeschützt, dreigängige Gewinde-Schnellkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 009: Fester Steckverbinder mit Rundflansch und Mutternbefestigung - Produktnorm

Série aérospatiale - Connecteurs électriques circulaires à contacts protégés, à accouplement par filetage à pas rapide à trois filets, températures d'utilisation 175 °C ou 200 °C continu - Partie 009 : Embase à collerette ronde à fixation par écrou - Norm

Aeronavtika - Konektorji, električni, okrogli, zaščiten kontakt, hitra spojka z navojem, stalna delovna temperatura 175 °C ali 200 °C - 009. del: Podloga, z okroglo prirobnico, pritrjena z matico - Standard za proizvod

Ta evropski standard določa značilnosti podlog, pritrjenih z matico, iz družine okroglih električnih konektorjev s hitro spojko z navojem.
Uporablja se za modele iz preglednice 3.
Za čepe in zaščitna prekrivala glej ustrezne standarde EN 3645-006, EN 3645-008, EN 3645-011 in EN 3645-012.
Za tesnilne čepe in priključke izhodov kablov, povezane s to podlogo, glej standard EN 3645-002. Ti konektorji izhajajo iz modelov W, F, J, M, Z, T in K v specifikaciji
MIL-DTL-38999/24 ter so medsebojno zamenljivi z njimi.

General Information

• Status: Published
• Publication Date: 04-Apr-2019
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Apr-2019
• Due Date: 10-Jun-2019
• Completion Date: 05-Apr-2019
• Ref Project: EN 3645-009:2019 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 009: Receptacle, round flange, jam nut mounting - Product standard

Relations

• Replaces: SIST EN 3645-009:2009 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 009: Receptacle, round flange, jam nut mounting - Product standard
• Effective Date: 03-Apr-2019
• Refers: SIST EN 3645-006:2015 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 006: Protective cover for receptacle - Product standard
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3645-008:2015 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling operating temperature 175 °C or 200 °C continuous - Part 008: Non release plug with grounding ring - Product standard
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3645-011:2009 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 011: Lanyard release plug with grounding fingers - Type 1 - Product standard
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3645-001:2022 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical specification
• Effective Date: 28-Jan-2026
• Refers: SIST EN 3645-012:2009 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 012: Lanyard release plug with grounding fingers - Type 2 - Product standard
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 3155-008:2026 - Aerospace series - Electrical contacts used in elements of connection - Part 008: Contacts, electrical, male, type A, crimp, class S - Product standard
• Effective Date: 15-Apr-2026
• Referred By: SIST EN 3660-021:2009 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 021: Cable outlet, style A, 90°, unsealed
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 3660-002:2009 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 002: Index of product standards
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 4531-001:2012 - Aerospace series - Connectors, optical, circular, single and multipin, coupled by triple start threaded ring - Flush contacts - Part 001: Technical specification
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 2591-318:2018 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 318: Fire-resistance
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 3645-006:2009 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 006: Protective cover for receptacle - Product standard
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 4531-001:2017 - Aerospace series - Connectors, optical, circular, single and multipin, coupled by triple start threaded ring - Flush contacts - Part 001: Technical specification
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 3155-002:2024 - Aerospace series - Electrical contacts used in elements of connection - Part 002: List and utilization of contacts
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 2591-326:2018 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 326: Fire immersion test
• Effective Date: 28-Jan-2026

Overview

SIST EN 3645-009:2019 is a European standard published by CEN, defining requirements for aerospace electrical connectors, specifically circular, scoop-proof connectors with triple start threaded coupling and continuous operating temperatures of 175 °C or 200 °C. This part of the EN 3645 series focuses on receptacles with a round flange and jam nut mounting. Applicable to both military and civil aerospace environments, these connectors are engineered for reliability in harsh operating conditions, supporting the critical needs of electrical systems aboard aircraft.

Key Topics

• Connector Design: Specifies the round flange, jam nut mounting style, which allows secure and robust attachment to panels.
• High Temperature Resistance: Designed for continuous operation at either 175 °C or 200 °C, making these connectors suitable for high-stress aerospace applications.
• Scoop-Proof Construction: Supports enhanced safety and reliability by preventing accidental contact damage during mating and unmating.
• Triple Start Threaded Coupling: Provides quick, secure, and vibration-resistant mating, which is essential in aerospace applications.
• Material Options: Includes aluminum, stainless steel, and composite materials with various plating options for resistance to corrosion and environmental degradation.
• Interchangeability: Derived from and compatible with MIL-DTL-38999/24 models, ensuring ease of integration and replacement in global aerospace supply chains.
• Multiple Configurations: Available with different shell sizes, contact arrangements, and resistance options (fluid, salt spray, etc.).
• Designation System: Uses a structured marking and ordering code for effective specification and traceability within the aerospace industry.

Applications

SIST EN 3645-009:2019 connectors are widely used in aerospace electrical systems where reliability and endurance are paramount. Key applications include:

• Aircraft Electrical Harnesses: Ensuring secure interconnections for critical avionics, power supplies, sensors, and control systems.
• Military and Civil Aviation: Suitable for use in both commercial airliners and defense platforms, supporting mission-critical performance.
• Aerospace Equipment Manufacturing: Integrates seamlessly into equipment such as flight data recorders, communication modules, lighting systems, and engine control units.
• Retrofit and Maintenance: Due to standardization and interchangeability, these connectors simplify upgrades and replacements in existing fleets.
• Harsh Environment Electronics: The robust design and finishes are particularly valuable in environments exposed to vibration, temperature extremes, humidity, and corrosive agents.

Related Standards

For a complete understanding and implementation of the EN 3645 series, the following related standards should be considered:

• EN 3645-001: Technical specification for aerospace circular, scoop-proof connectors.
• EN 3645-002: Details performance requirements and contact arrangements.
• EN 3645-006: Product standard for protective covers for receptacles.
• EN 3645-008 and EN 3645-011/012: Standards for related plug configurations and lanyard release plugs.
• MIL-DTL-38999/24: U.S. military specification outlining compatible connector models, often referenced for interchangeability.
• EN 3155 series: Relevant for contact coding and arrangement in these connectors.

Practical Value

Adhering to SIST EN 3645-009:2019 ensures:

• Quality Assurance: Confirms reliable operation in mission-critical aerospace electrical systems.
• Safety and Compatibility: Enhances system safety by adhering to proven design features and international compatibility.
• Reduced Maintenance and Downtime: Enables quick, accurate identification, replacement, and servicing of connectors.
• Regulatory Compliance: Facilitates compliance in both European and global aerospace sectors.

Using SIST EN 3645-009:2019 connectors is a best practice in aerospace electrical interconnections, ensuring high performance, durability, and global interoperability.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Elektrische Rundsteckverbinder, kontaktgeschützt, dreigängige Gewinde-Schnellkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 009: Fester Steckverbinder mit Rundflansch und Mutternbefestigung - ProduktnormSérie aérospatiale - Connecteurs électriques circulaires à contacts protégés, à accouplement par filetage à pas rapide à trois filets, températures d'utilisation 175 °C ou 200 °C continu - Partie 009 : Embase à collerette ronde à fixation par écrou - NormAerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 009: Receptacle, round flange, jam nut mounting - Product standard49.060Aerospace electric equipment and systems31.220.10Plug-and-socket devices. ConnectorsICS:Ta slovenski standard je istoveten z:EN 3645-009:2019SIST EN 3645-009:2019en,fr,de01-junij-2019SIST EN 3645-009:2019SLOVENSKI
STANDARDSIST EN 3645-009:20091DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3645-009
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translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
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t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
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