SIST EN 3660-024:2008
(Main)Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 024: Grommet nut, style A, composite - Product standard
- Abstract
This product standard defines a range of grommet nuts, style A, composite, for use under the following conditions:
Associated electrical connector(s) : EN 3660-002
Temperature range, Class P : - 55 °C to 200 °C
- Status
- Published
- Publication Date
- 26-May-2008
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 09-May-2008
- Due Date
- 14-Jul-2008
- Completion Date
- 27-May-2008
SIST EN 3660-024:2008 is the Slovenian standard identical to EN 3660-024:2008, a European Standard from CEN for aerospace cable outlet accessories. It specifies style A composite grommet nuts for circular and rectangular electrical and optical connectors, including their dimensions, material, torque limits, tests, designation and marking for use with EN 3660-002 connectors in Class P from -55 °C to 200 °C.
What does SIST EN 3660-024:2008 specify?
SIST EN 3660-024:2008 defines one product family - grommet nuts, style A, composite - for a stated connector family and temperature class. It is organized into clauses 1 to 7: scope, normative references, terms and definitions, characteristics, designation, marking, and technical specification.
In practice, this part of the series is the product standard you use when the accessory must match EN 3660-002 connectors and operate in the Class P temperature range. The document concentrates on product definition, dimensions, materials, torques and qualification tests rather than on general connector theory.
What are the key requirements of SIST EN 3660-024:2008?
SIST EN 3660-024:2008 gives the dimensional, material, torque and verification data needed to specify, install and qualify the grommet nut. The most important requirements are in Clause 4 and Table 4.
- Clause 4.1 - Dimensions and mass. Figure 1 and Table 1 define the shell sizes, threads, principal dimensions and mass. This lets designers and buyers check that the accessory fits the intended connector shell size.
- Clause 4.2 - Material and finish. Class P is composite, natural colour and unplated. This matters for inspection and procurement because the finish is part of the product definition.
- Clause 4.3 - Assembly torque. Table 2 gives installation torque values for assembly use only. Installers use these limits to tighten the part without damaging it.
- Clause 4.4 - Coupling thread strength torques. Table 3 gives the torque values used for test purposes, with EN 2591-420 as the test method reference. Test laboratories use this to check mechanical strength rather than installation suitability.
- Clause 4.5 - Tests and qualification. Table 4 ties the product to EN 3660-001 for test details and qualification. It covers visual and dimensional checks, electrical continuity, surface transfer impedance, environmental resistance, vibration and shock, mechanical endurance, mating and unmating forces, rear accessory strength, locking wire hole strength, magnetic permeability and hydrolytic stability.
- Selected test conditions. The table also states specific conditions such as endurance at temperature by Method B at 200 °C for 1 000 h, mechanical endurance for 30 cycles, and flammability by Method A on a standard test specimen, not on the product. These details tell the lab exactly how the part is assessed.
- Clause 5 - Designation. The part number combines the standard number, material/finish class and shell size. This gives a consistent ordering and drawing reference.
- Clauses 6 and 7. Marking and technical specification are both referred back to EN 3660-001, which keeps the product family aligned across the series.
What terms does SIST EN 3660-024:2008 define?
SIST EN 3660-024:2008 uses the terms and definitions from EN 3660-001, and several terms are central to this part:
- Grommet nut - a rear cable outlet accessory used with the connector family covered by this standard.
- Style A - the product style identified by this part of the series.
- Composite - the material type used for the Class P product.
- Class P - the temperature class for service from -55 °C to 200 °C.
- Shell size - the size designation used to select the correct dimensions, thread and torque values.
- Identity block - the part of the designation that carries the standard number and product code.
- Description block - the part of the designation that states the product type and variant.
Who uses SIST EN 3660-024:2008?
SIST EN 3660-024:2008 is used by aerospace connector designers, rear accessory manufacturers, test laboratories and quality teams. It is also useful for buyers and suppliers who need a clear product definition for sourcing, inspection and qualification.
Engineers use it to select the correct shell size, finish and torque limits. Laboratories use it to run the listed EN 2591 tests and the qualification checks linked to EN 3660-001.
Which standards are used with SIST EN 3660-024:2008?
- EN 3660-001 - provides the technical specification, terms and definitions, and the marking rules referred to in Clauses 3, 6 and 7.
- EN 3660-002 - identifies the associated electrical connector(s) and serves as the index of product standards for this series.
- EN 2591-* - supplies the aerospace test methods used for the mechanical, electrical and environmental checks named in Clause 4.5, including EN 2591-420 for mechanical strength of rear accessories.
What does the SIST EN 3660-024:2008 document contain?
The document contains one figure and four main tables that carry the practical product data. Figure 1 shows the accessory and identifies the thread, knurled option and marking location.
Table 1 gives shell sizes, threads, dimensions and masses. Table 2 gives assembly torque values, and Table 3 gives coupling thread strength torques for test purposes. Table 4 is the qualification matrix, with EN 2591 test numbers, titles and special conditions where they apply.
Clause 5 gives a designation example, and Clauses 6 and 7 point back to EN 3660-001 for marking and technical specification.
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
- 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
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN 3660-024:2008 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 024: Grommet nut, style A, composite - Product standard". This standard covers: This product standard defines a range of grommet nuts, style A, composite, for use under the following conditions: Associated electrical connector(s) : EN 3660-002 Temperature range, Class P : - 55 °C to 200 °C
This product standard defines a range of grommet nuts, style A, composite, for use under the following conditions: Associated electrical connector(s) : EN 3660-002 Temperature range, Class P : - 55 °C to 200 °C
SIST EN 3660-024:2008 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 3660-024:2008 has the following relationships with other standards: It is inter standard links to SIST EN 2591-209:2001, SIST EN 2591-614:2004, SIST EN 2591-615:2004, SIST EN 2591-211:2004, SIST EN 2591-316:2001, SIST EN 2591-219:2004, SIST EN 2591-613:2004, SIST EN 2591-321:2001, SIST EN 2591-401:2001, SIST EN 2591-512:2004, SIST EN 2591-424:2004, SIST EN 2591-220:2006, SIST EN 2591-6306:2004, SIST EN 2591-309:2001, SIST EN 2591-216:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 3660-024:2008 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 - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 024: Grommet nut, style A, composite - Product standardYRGSérie aérospatiale - Accessoires arrière pour connecteurs circulaires et rectangulaires électriques et optiques - Partie 024 : Ecrou serre-fils, type A composite - Norme de produitLuft- und Raumfahrt - Endgehäuse für elektrische und optische Rund- und Rechtecksteckverbinder - Teil 024: Mutter, Bauform A, Composite - Produktnorm49.060Aerospace electric equipment and systemsICS:SIST EN 3660-024:2008enTa slovenski standard je istoveten z:EN 3660-024:200801-julij-2008SIST EN 3660-024:2008SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3660-024April 2008ICS 49.060 English VersionAerospace series - Cable outlet accessories for circular andrectangular electrical and optical connectors - Part 024:Grommet nut, style A, composite - Product standardSérie aérospatiale - Accessoires arrière pour connecteurscirculaires et rectangulaires électriques et optiques - Partie024 : Ecrou serre-fils, type A composite - Norme de produitLuft- und Raumfahrt - Endgehäuse für elektrische undoptische Rund- und Rechtecksteckverbinder - Teil 024:Mutter, Bauform A, Composite - ProduktnormThis European Standard was approved by CEN on 12 January 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3660-024:2008: E
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