SAE AS5202a-2013 PDF

Full title and description

SAE AS5202A — "Port or Fitting End, Internal Straight Thread, Design Standard". This SAE International technical standard defines the design configuration and dimensional practice for internal straight-thread ports or fitting ends used in aerospace fluid and hydraulic systems.

Abstract

AS5202A provides a concise design standard for internal straight-thread ports and fitting ends, establishing the nominal form, key dimensions and usage context for mating fittings and seals in aerospace fluid systems. It is intended to ensure interchangeability and proper sealing when used with complementary standards such as O‑ring specifications and mating fitting design documents.

General information

• Status: Reaffirmed (AS5202A).
• Publication date: January 7, 2013 (AS5202A reaffirmation / revision date).
• Publisher: SAE International.
• ICS / categories: Aerospace standards; fluid power / hydraulic fittings; mechanical design and standardization (fittings, ports, seals).
• Edition / version: AS5202A (designation for the 2013 reaffirmation/revision of AS5202).
• Number of pages: 3 pages (AS5202A document).

Scope

AS5202A covers the design characteristics of internal straight-thread ports or fitting ends used on components and manifolds in aerospace fluid systems. The standard establishes the intended form and primary dimensions for the port/fitting end so that mating fittings and sealing elements can be selected and manufactured for reliable mechanical fit and sealing performance. It is a concise design standard intended to be used alongside complementary SAE documents that define seals, mating fittings and assembly practices.

Key topics and requirements

• Designation and nominal geometry of internal straight-thread ports (port/fitting end form and critical dimensions).
• Dimensional tolerances and callouts necessary for interchangeability of mating fittings.
• Compatibility and sealing considerations with elastomeric O‑rings (see related AS6203 O‑ring specification for material and molding guidance).
• Reference to mating fitting designs and assembly interfaces (cross-references to standards for inserts, ring-locked bosses, etc.).
• Application context: aerospace hydraulic/fluid systems where consistent port geometry is required for interchangeability and field serviceability.

Typical use and users

AS5202A is used by aerospace design and systems engineers, component and manifold designers, fitting manufacturers, quality/inspection personnel, and procurement teams specifying compatible ports and fittings for aircraft fluid systems. It is referenced when designing new components, verifying compatibility of replacement parts, and specifying requirements for suppliers.

Related standards

Commonly referenced SAE documents include the original AS5202 (superseded by AS5202A), AS6203 (O‑ring molded from AMS7379 rubber for use with AS5202 ports) and AS3078 (fitting inserts and mating configurations such as AS5202 boss to ring‑locked boss). Other aerospace recommended practices and component standards (e.g., ARP and AS series items) may cross‑reference AS5202A for port geometry.

Keywords

AS5202A, port end, fitting end, internal straight thread, thread, aerospace fittings, hydraulic ports, O‑ring, sealing, SAE International.

FAQ

Q: What is this standard?

A: AS5202A is an SAE International design standard titled "Port or Fitting End, Internal Straight Thread" that specifies the design/form and primary dimensions for internal straight‑thread ports used in aerospace fluid systems.

Q: What does it cover?

A: It covers the design configuration and dimensional practice for internal straight‑thread ports or fitting ends to ensure mating compatibility and proper sealing with associated fittings and seals; it is concise and intended to be used together with related SAE standards for seals and mating fittings.

Q: Who typically uses it?

A: Aerospace systems and mechanical engineers, fitting and manifold designers, component manufacturers, inspection/quality engineers and procurement specialists specifying or verifying port/fitting compatibility.

Q: Is it current or superseded?

A: The original AS5202 (2001) was superseded by AS5202A; AS5202A was reaffirmed (issued/reaffirmed) on January 7, 2013 and is listed as the active/reaffirmed document in SAE listings. Users should check SAE International's standards catalog for any amendments or later reaffirmations beyond January 7, 2013.

Q: Is it part of a series?

A: AS5202A is part of SAE’s body of aerospace standards covering fittings, seals and hydraulic components; it is commonly used alongside related AS and ARP documents (for example AS6203 for O‑rings and AS3078 for mating fitting inserts).

Q: What are the key keywords?

A: Port end, fitting end, internal straight thread, SAE AS5202A, aerospace fittings, hydraulic port, O‑ring compatibility, design standard.