ISO 7169-2014 PDF

Full title and description

ISO 7169:2014 — Aerospace — Separable tube fittings for fluid systems, for 24 degree cones, for pressures up to 3 000 psi (21 000 kPa) — Procurement specification, inch/metric. This procurement specification defines performance and quality requirements for qualification and manufacture of 24° cone separable tube fittings used in aircraft hydraulic systems.

Abstract

Specifies baseline criteria, performance and quality requirements for the qualification and manufacture of standard 24° cone fittings (and equivalent inch-dimensioned fitting ends) to ensure reliable performance in aircraft hydraulic systems. The standard covers fittings of the temperature types and pressure classes referenced to ISO 6771.

General information

• Status: Published (confirmed in systematic review 2021; remains current).
• Publication date: 13 November 2014 (Edition 5, published 2014-11-13).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.080 (Aerospace engineering / fluid systems and components).
• Edition / version: Edition 5 (ISO 7169:2014).
• Number of pages: 20 (ISO published document length).

Scope

Defines procurement specification requirements for separable tube fittings with 24° cones intended for aerospace hydraulic fluid systems up to 3 000 psi (21 000 kPa). It sets qualification and manufacture criteria and references the temperature types and pressure classes given in ISO 6771. The document is intended to provide baseline criteria for design and manufacture of system fittings that undergo qualification testing on engines.

Key topics and requirements

• Performance and quality requirements for qualification and manufacture of 24° cone separable tube fittings.
• Specification of acceptable pressure classes (up to 3 000 psi / 21 000 kPa) and relevant temperature classifications (per ISO 6771).
• Baseline design and manufacturing criteria for fittings used on aircraft hydraulic systems, including inch/metric procurement dimensions.
• Qualification-test basis for fittings intended for engine or system use.
• Interrelation with other aerospace tube-fitting standards and higher-pressure qualification standards (see Related standards).

Typical use and users

Used by aerospace engineers, procurement specialists, designers of hydraulic systems, component manufacturers, quality and conformity assessment professionals, and certification authorities in the aircraft industry. It is applied when specifying, procuring or qualifying separable tube fittings (24° cone type) for aircraft hydraulic lines and related assemblies.

Related standards

Commonly referenced standards include ISO 6771 (pressure and temperature classifications for aerospace fluid systems) and other qualification/specification standards for tube fittings (for example ISO 19631 for higher-pressure tube fittings). These documents together define pressure/temperature classes, qualification methods and related dimensional/quality requirements used across aerospace fluid-system fittings.

Keywords

aerospace; separable tube fittings; 24° cone; hydraulic systems; procurement specification; qualification; 3000 psi; 21000 kPa; ISO 7169; temperature classes; pressure classes.

FAQ

Q: What is this standard?

A: ISO 7169:2014 is an ISO procurement specification for separable tube fittings with 24° cones used in aerospace fluid systems, setting qualification and manufacturing requirements to ensure reliable hydraulic system performance.

Q: What does it cover?

A: It covers performance and quality requirements, baseline design and manufacture criteria, and procurement dimensional guidance (inch/metric) for 24° cone separable tube fittings up to 3 000 psi (21 000 kPa), and refers to ISO 6771 for temperature and pressure classifications.

Q: Who typically uses it?

A: Aerospace component manufacturers, hydraulic system designers, procurement/specification teams, quality and compliance engineers, and certification bodies involved in aircraft fluid-system hardware.

Q: Is it current or superseded?

A: It is current. ISO 7169:2014 (Edition 5) was published on 13 November 2014 and was last reviewed and confirmed in 2021, so this version remains the active international standard.

Q: Is it part of a series?

A: It sits within a set of aerospace fluid-systems standards produced by ISO/TC 20/SC 10. Related documents include standards for pressure/temperature classification (ISO 6771) and other tube-fitting qualification specifications (for example ISO 19631 for higher-pressure fittings). These complementary standards are used together when specifying and qualifying fittings.

Q: What are the key keywords?

A: Aerospace, separable tube fittings, 24° cone, hydraulic fittings, procurement specification, qualification, 3000 psi, 21000 kPa, ISO 7169, temperature classes, pressure classes.