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O-RINGS AN6227B-23 MS28775-218

$1.93/Piece
Part# AN6227B-23
MFR Model# MS28775-218
PNMS EquivalentWidthIDOD
AN6227B-23MS28775-2181/81-1/41-1/2

Overview

O-rings give effective sealing over wide ranges of pressure, temperature, and movement, with the advantage of sealing pressure in both directions and reducing friction and wear on moving parts. The use of O-rings as gaskets or static seals permits metal-to-metal contact and allows almost unlimited pressures under extreme vibration.

All O-rings should be lubricated before installation and constant lubrication should be provided for running seals to avoid excessive wear. Avoid sharp edges, threads, and cross-drilled ports over or through which rings must be installed. AN6227B and AN6230B O-rings are manufactured to Spec. MIL-P 25732 for use in hydraulic systems using MIL-0-5606 hydraulic oils. MS28775 O-rings meet Spec. MIL-P- 5510A and are suitable for MIL-0-5606 hydraulic fluid at 160 F.
   
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov

Reviews

Round and rubber - just like I wanted them!

Martin H Verified Purchase

O-RINGS AN6227B-23 MS28775-218

January 27, 2023

Just what I ordered.

Kenneth L Verified Purchase

O-RINGS AN6227B-23 MS28775-218

December 8, 2022

These riings worked perfectly. I had tried non-spec o-rings with disastrous results. Thank you AS&S!

Gus G Verified Purchase

O-RINGS AN6227B-23 MS28775-218

May 22, 2022

I keep several of these in my toolbox so they are readily available when changing out brake pads.

Paul A Verified Purchase

O-RINGS AN6227B-23 MS28775-218

March 5, 2022

William J Verified Purchase

O-RINGS AN6227B-23 MS28775-218

February 23, 2022

👍

William T Verified Purchase

O-RINGS AN6227B-23 MS28775-218

January 29, 2022

Excellent product

Kenneth M Verified Purchase

O-RINGS AN6227B-23 MS28775-218

October 16, 2021

Ralph S Verified Purchase

O-RINGS AN6227B-23 MS28775-218

September 26, 2021

Douglas E Verified Purchase

O-RINGS AN6227B-23 MS28775-218

July 21, 2021

Correct O ring for P 28R brake cylinder

Dan V Verified Purchase

O-RINGS AN6227B-23 MS28775-218

May 27, 2021

Q&A

Please note, Pilotshop's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Pilotshop assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Can these O rings be used in fuel cells with 100LL fuel?

These o-rings, AN6227B series, are not fuel resistant. For fuel resistant o-rings, see the MS29513 series. MS29513 are aviation fuel resistant, but not resistant to automotive fuel. Search for MS29513 on our web site to find the page with the fuel resistant o-rings.

Q: Are the O-rings Butyl rubber?

These are POLYTETRAFLUOROETHYLENE per the mil spec.

Q: What is the shelf life of these o-rings?

15 years per the cert.