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SECO11 products are designed to be reliable, flight grade components made in accordance with AS4825, a National Aerospace Standard. They are intended for use with flareless 24-degree fitting ends per AS4375 or similar fitting ends for power plant applications, fuel systems, ground and test support equipment.

SECO11 24 Degree Flareless Gasket

These “24 Degree Flareless Tube Fitting Gaskets” are for use on connections from ranging from 1/8” to 2” Nominal Tube Diameter.

SECO11 Standard Available Materials

SECO11 flareless gaskets are made of Aluminum (Per QQ-A-1876 or AMS 4001) and Stainless Steel (Per ASTM B 162 or AMS 5553).


Click on the button and go to SAE’s webpage for AS4825 where you can purchase and download a copy of the standard.

SECO11 Information PDF and Download

The SECO11 Information PDF consists of two pages.

Page 1 – SECO11 Overview

Page 1 of the information PDF provides complete sizing information and tolerances for SECO11 24 Degree Flareless Tube Fitting Gaskets.

Page 2 – SECO11 Overview

Page 2 of the SECO11 information PDF has Notes, Material and Finish, Cleaning and Packaging data for SECO11 24 Degree Flareless Tube Fitting Gaskets.

Call or Fax for Information

Phone: +1 714.546.3478
Fax: +1 714.546.3106