ISO 12573-2010 PDF

Full title and description

ISO 12573:2010 — Aircraft — Tubing tolerances — Inch series. This International Standard specifies the dimensional tolerances to be applied to round-section inch-series tubing used in aircraft, providing harmonized tolerance limits for outside diameter, wall thickness/inside diameter, straightness, ovality and related dimensional characteristics for aerospace tubing.

Abstract

ISO 12573:2010 gives the tolerance tables and rules for ordering and verifying round-section aircraft tubing sized in an inch (fractional) series. Its purpose is to ensure interchangeability and consistent acceptance criteria for tubing used in aircraft hydraulic and fluid systems.

General information

• Status: Published (International Standard; confirmed on periodic review).
• Publication date: 2010-09 (commonly cited as 03 September 2010).
• Publisher: International Organization for Standardization (ISO); available as identical national adoptions (for example BS ISO 12573:2010).
• ICS / categories: 49.080 — Aerospace fluid systems and components.
• Edition / version: Edition 1 (2010).
• Number of pages: 10 pages.

Scope

Applies to round-section inch-series tubing intended for aircraft service. The standard defines which nominal sizes and materials are covered, and provides dimensional tolerance limits and ordering rules so manufacturers, purchasers and inspectors have a common reference. It is intended for tubing used in aircraft fluid and hydraulic systems where inch-series (fractional) sizing is specified.

Key topics and requirements

• Nominal sizes and identification in an inch (fractional) series and corresponding SI equivalents.
• Dimensional tolerance tables for outside diameter (OD) and for wall thickness / inside diameter (ID) where applicable.
• Limits for ovality (maximum difference between major and minor OD) and concentricity/variation of wall thickness.
• Straightness and fixed-length tolerances and general rules for length specification.
• Material-specific notes (typical materials: aluminium alloys, titanium and alloys, corrosion-resistant steels and nickel alloys) and instructions for which material section to apply when ordering.
• Ordering instructions and application rules so that the purchaser specifies which tolerances (OD, ID or thickness) and material provisions are required.

Key technical points and tables are normative in the standard; users should consult the published document for exact numeric tolerance values.

Typical use and users

Primary users are aerospace designers and engineers, tubing and tube-component manufacturers, quality assurance and inspection teams, procurement/specification authors for aircraft systems, and maintenance/repair organizations that need to verify replacement tubing. The standard is used when specifying acceptance criteria, ordering finished tubing, and performing dimensional inspections.

Related standards

ISO 12573:2010 is normally used alongside broader aerospace tubing and hydraulic-system standards such as ISO 8575 (aerospace hydraulic system tubing sizes and requirements) and other material/product specifications for tubing (material standards and qualification/test standards). National adoptions (for example BS ISO 12573:2010) reproduce the content for use under national systems.

Keywords

aircraft tubing, tubing tolerances, inch series, tubing dimensions, outside diameter, wall thickness, ovality, straightness, aerospace fluid systems, ISO 12573:2010.

FAQ

Q: What is this standard?

A: ISO 12573:2010 is an International Standard titled "Aircraft — Tubing tolerances — Inch series" that specifies dimensional tolerances and ordering rules for round-section inch-series tubing used in aircraft.

Q: What does it cover?

A: It covers nominal sizes (inch-series), tolerance tables for OD and wall/ID where applicable, limits for ovality and straightness, length tolerances and instructions on how to specify tolerances for different materials used in aircraft tubing. The exact numeric tolerances and tables are contained in the published document.

Q: Who typically uses it?

A: Aerospace designers, tubing manufacturers and suppliers, inspection and QA teams, procurement/specification engineers, and maintenance/repair organizations in the aerospace sector.

Q: Is it current or superseded?

A: ISO 12573:2010 was published in September 2010 and the ISO catalogue shows this edition was reviewed and confirmed (most recent ISO lifecycle status: confirmed). Users should check the official catalogue or national standards bodies for any later revisions or replacements before placing an order.

Q: Is it part of a series?

A: It is part of the family of aerospace tubing and hydraulic-system standards (for example used in conjunction with ISO 8575). It may be referenced by other aerospace specifications and national adoptions.

Q: What are the key keywords?

A: Aircraft tubing, tubing tolerances, inch series, OD tolerance, wall thickness, ovality, straightness, aerospace fluid systems, ISO 12573.