XFRX versions 14.1, Release notes

Release date: 6 December 2010

Sae-as33514 May 2026

SAE-AS33514 defines the requirements for Fittings, Fluid Systems, for High-Performance, Anti-Vibration, and Installation Error Reduction.

In plain English: It’s a fitting standard designed for humans.

While the full spec is technical (and behind SAE’s paywall), the core innovation revolves around non-threaded retaining mechanisms and visual torque verification.

SAE AS33514 establishes requirements and recommended practices for software assurance activities in safety-critical systems. It complements functional safety processes (e.g., DO-178C) by focusing on risk mitigation, verification independence, and lifecycle traceability. sae-as33514

While SAE-AS33514 is dominant in North American aerospace, other regions and applications use alternative standards:

| Standard | Region/Application | Key Difference | |----------|--------------------|------------------| | MIL-F-18280 | U.S. military legacy | Superseded by AS33514 but still referenced for older aircraft. | | DIN 2353 (now ISO 8434-1) | European industrial hydraulics | Uses a 24-degree cone with O-ring; not aerospace-vibration rated. | | AS5169 | Alternative flareless fitting for extreme cryogenic service (rocket fuel) | Uses a different ferrule geometry and torque values. |

For new aerospace designs, SAE-AS33514 is the recommended choice due to its proven reliability in flight hours (billions of fleet hours since the 1970s). Pro Tip: Do not accept "SAE-AS33514-type" or "equivalent

When purchasing or specifying SAE-AS33514 parts, look for the following identification on the manufacturer’s datasheet or certificate of conformance (C of C):

Pro Tip: Do not accept "SAE-AS33514-type" or "equivalent to" without documented evidence of qualification. Uncertified sleeves can shrink unevenly, crack at cold temperatures, or lose their print mid-flight—all of which are unacceptable in aviation.

A common point of confusion is the difference between AS33514 and other similar standards. Here is a quick comparison: crack at cold temperatures

| Standard | Material | Primary Use | Marking Method | | :--- | :--- | :--- | :--- | | AS33514 | Crosslinked PVDF | Permanent wire identification | Thermal transfer, dot matrix, laser | | AS23053 | Various (including PVDF) | General purpose electrical insulation | Not required | | AS81044 | Crosslinked ETFE | Wire insulation (hookup wire) | Not applicable | | AS5942 | PTFE or FEP | High-temperature sleeving (non-markable) | Hand writing only |

Key takeaway: If you need to print durable, machine-readable text on a sleeve that will survive in a jet engine nacelle or fuel bay, you need AS33514. If you just need to insulate a splice, AS23053 is the appropriate standard.

Important installation notes for 12.x versions

Office 2010 compatibility notes fixes



XFRX versions 14.0, Release notes

Release date: 19 July 2010

New features

Digital signatures in PDF

The digital signature can be used to validate the document content and the identity of the signer. (You can find more at http://en.wikipedia.org/wiki/Digital_signature). XFRX implements the "MDP (modification detection and prevention) signature" based on the PDF specification version 1.7, published in November 2006.

The signing algorithm in XFRX computes the encrypted document digest and places it, together with the user certificate, into the PDF document. When the PDF document is opened, the Adobe Acrobat (Reader) validates the digest to make sure the document has not been changed since it was signed. It also checks to see if the certificate is a trusted one and complains if it is not. The signature dictionary inside PDF can also contain additional information and user rights - see below.

At this moment XFRX supports invisible signatures only (Acrobat will show the signature information, but there is no visual element on the document itself linking to the digital signature). We will support visible signatures in future versions.

In the current version, XFRX is using the CMS/PKCS #7 detached messages signature algorithm in the .net framework to calculate the digest - which means the .NET framework 2.0 or newer is required. The actual process is run via an external exe - "xfrx.sign.net.exe", that is executed during the report conversion process. In future, we can alternatively use the OpenSSL library instead.

How to invoke the digital signing

(Note: the syntax is the same for VFP 9.0 and pre-VFP 9.0 calling methods)

To generate a signed PDF document, call the DigitalSignature method before calling SetParams. The DigitalSignature method has 7 parameter:

cSignatureFile
The .pfx file. pfx, the "Personal Information Exchange File". This file contains the public certificate and (password protected) private key. You get this file from a certificate authority or you can generate your own for testing, which for example, OpenSSL (http://www.slproweb.com/products/Win32OpenSSL.html). XFRX comes with a sample pfx that you can use for testing.
cPassword
The password protecting the private key stored in the .pfx file
nAccessPermissions
per PDF specification:
1 - No changes to the document are permitted; any change to the document invalidates the signature.
2 - Permitted changes are filling in forms, instantiating page templates, and signing; other changes invalidate the signature. (this is the default value)
3 - Permitted changes are the same as for 2, as well as annotation creation, deletion and modification; other changes invalidate the signature.
cSignatureName
per PDF specification: The name of the person or authority signing the document. This value should be used only when it is not possible to extract the name from the signature; for example, from the certificate of the signer.
cSignatureContactInfo
per PDF specification: Information provided by the signer to enable a recipient to contact the signer to verify the signature; for example, a phone number.
cSignatureLocation
per PDF specification: The CPU host name or physical location of the signing.
cSignatureReason
per PDF specification: The reason for the signing, such as ( I agree ... ).

Demo

The demo application that is bundled with the package (demo.scx/demo9.scx) contains a testing self-signed certificate file (TestEqeus.pfx) and a sample that creates a signed PDF using the pfx. Please note Acrobat will confirm the file has not changed since it was signed, but it will complaing the certificate is not trusted - you would either need to add the certificate as a trusted one or you would need to use a real certificate from a certification authority (such as VeriSign).

Feedback

Your feedback is very important for us. Please let us if you find this feature useful and what features you're missing.


XFRX versions 12.9, Release notes

Release date: 15 June 2010

Bugs fixed


XFRX versions 12.8, Release notes

Release date: 22 November 2009

New features / Updates

Bugs fixed


XFRX versions 12.7, Release notes

Release date: 23 December 2008

New features / Updates

Bugs fixed

Known issue: The full justify feature (<FJ>) does not work in the previewer. We are working on fixing this as soon as possible.


XFRX versions 12.6, Release notes

Release date: 01 August 2008

New features / Updates

Bugs fixed


XFRX versions 12.5 + 12.4, Release notes

Version 12.5 released on: 31 January 2008
Version 12.4 released on: 14 November 2007

Important installation note for the latest version
Important installation notes for 12.x versions

New features / Updates

Bugs fixed


XFRX version 12.3, Release notes

Release date: 27 August 2007

Important installation notes for 12.x versions

New features / Updates

Bugs fixed


XFRX version 12.2, Release notes

Release date: 5 December 2006

Important installation notes for 12.x versions

New features / Updates

Bugs fixed


XFRX version 12.1, Release notes

Release date: 5 September 2006

Important installation notes

New features / Updates

Bugs fixed


XFRX version 12.0, Release notes

Release date: 17 August 2006

Installation notes:

New features / Updates

Bugs fixed


XFRX version 11.3, Release notes

Release date: 14 March 2006

New features / Updates

Bugs fixed

Evaluation package note: The Prevdemo directory with the XFRX previewer implementation sample has been removed as the same functionality is now supported by the "native" class frmMPPreviewer of XFRXLib.vcx.


XFRX version 11.2, Release notes

Release date: 6 December 2005

New features


XFRX version 11.1, Release notes

Release date: 7 September 2005

New features

 

Bug fixes


XFRX version 11.0, Release notes

Release date: 2 June 2005

New features

 

Bug fixes


XFRX version 10.2, Release notes

Release date: 20 April 2005

New features

 

Bug fixes