O-Ring

O-Ring is the Hutchinson app for assembly aid and measurement of O-Rings

Hutchinson · air.com.hutchinsontransmission.ord

Not rated yet 10K+ downloads v2.92 18.1 MB Android 5.0+ PEGI 3 · Everyone

Download APK 18.1 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.92 (2092000)
Updated: Aug 27, 2025 (1 year ago)
APK size: 18.1 MB
Requires: Android 5.0+ (API 21)
CPU support: ARM 64-bit
Category: Productivity (app)
Listed since: Dec 22, 2022 (at least)
Permissions: 13 (4 sensitive)
Website: oring.hutchinson.fr
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

O-Ring is an app by Hutchinson in the Productivity category, listed since at least December 2022. It includes native code only for ARM 64-bit, so it won't install on phones that can only run 32-bit apps.

It asks for 13 permissions, 4 of them sensitive, including camera, read phone status and identity and find accounts on the device. It asks for the same permissions as version 2.91.

What's new in v2.92

Android SDK version update

Description

From the listing uploaded by “appupdater”.

Who hasn't sometimes wished for assistance when it comes to define the mounting dimensions for O-Rings or even find the right O-Ring? The Hutchinson O-Ring app offers precious tools: - Assembly aid, depending on the installation type (in a bore, on a piston, cover fitting with internal or external pressure) - Compounds compatibility with various fluids - Intelligent O-Ring measuring tool with the smartphone's camera function - Dimensions list for standard parts You can choose a reference number from thousands of available O-Rings and then precisely define the groove dimensions to ensure perfect sealing. On the contrary, after choosing the installation type and the groove dimensions, the app will recommend a list of compatible O-Ring dimensions. A smart measuring tool has been developed to measure your O-Rings dimensions. This can for instance be used in MRO for easy replacement. Take a coin to set the standard and watch your smartphone turn into a digital measure tool for precision seals! If chemistry classes are bad memories for you, the compound compatibility tool will help you to define the appropriate compound family, depending on the fluid used in your application. Bonus : get the PDF calculation results per email ! In order to confirm your choice, we recommend to validate with tests

Version history

3 versions are listed, going back to v2.9.

v2.92 LATEST Aug 27, 2025 18.1 MB TRUSTED v2.91 Aug 31, 2024 18.1 MB TRUSTED v2.9 Jul 30, 2024 18.1 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 27, 2025.
Certificate issued to “cert” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 27, 2025
Validated against Google Play Aug 27, 2025
Signed byCN=cert
Signing certificate (SHA-1)A9:7B:4A:06:47:4B:38:C4:D9:32:3A:EE:25:8E:66:13:A4:6B:75:E6
File MD5ddcffb678c1cefc1d00fa636834d56dc
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (13)

O-Ring requests 13 permissions, 4 of them sensitive.

Camera Sensitive android.permission.CAMERA
Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Get tasks android.permission.GET_TASKS
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Prevent the device from sleeping android.permission.WAKE_LOCK
Push messaging (app-defined) com.hutchinsontransmission.ord.permission.C2D_MESSAGE
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Camera android.hardware.camera
Camera autofocus android.hardware.camera.autofocus
Touchscreen android.hardware.touchscreen
Multi-touch screen android.hardware.touchscreen.multitouch

O-Ring APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the O-Ring APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is ddcffb678c1cefc1d00fa636834d56dc.