SECO7 products are designed to be reliable, flight grade components made in accordance with AS4824, a National Aerospace Standard. They are intended for use with 37 degree flared fitting ends per AS4395, AS4396 or similar fitting ends for power plant applications, fuel systems, ground support and test equipment.
Standard Available Materials
SECO7 crush washers are made of Aluminum (Per QQ-A-1876 or AMS 4001 – superseded by ASTM B 209), Copper (Per ASTM B152 and ASTM B 152M) , Nickel (Per ASTM B 162 or AMS 5553), and Stainless Steel (Per ASTM A 240).
These “37 Degree Flared Tube Fitting Conical Seals” are made for use on connections from 1/16″ to 3″ Nominal Tube Diameter. They conform to ASE Standards AS4824 and J514/1_202112. Depending on the base material, these flare savers are also available with “Silver” or “Tin” Plating. “Tin Plating” is available for all four materials, “Silver Plating” is only available for nickel and stainless-steel conical seals.
Make SECO SEALS your choice for flared tube fitting gasket applications.
SAE AS4824
Click on the button and go to SAE’s webpage for AS4824B where you can purchase and download a copy of the standard.
SAE J514/1_202112
This SAE standard defines “Metallic Connections for Fluid Power and General Use – Part 1: 37 Degree Flared Fittings.” It covers general and dimensional specifications for 37 degree flared tube fittings. These fittings are capable of providing leak-proof, full flow connections in hydraulic systems operating at working pressures as specified in “Table 6“.
Click on the button and go to SAE’s webpage for J514/1_20112 where you can purchase and download a copy of the standard.
SECO7 Assistance
Whether you are an engineer or a repair expert, SECO SEALS can assist you with your needs.
Repair Experts
View our installation demonstration videos which are available in 10 different languages: English, plus French, Italian, German, Brazilian Portuguese, Japanese, Mandarin, Arabic and Spanish.
SECO7 Information PDF and Download
The SECO7 Information PDF consists of three pages.
For detailed technical information on our SECO7 product line, you can either view the SECO7 engineering drawings online or download a PDF of them.
Page 1 – SECO7 Overview
Page 1 of the information PDF provides complete sizing information and tolerances for SECO7 37 Degree Flared Tube Fitting Conical Seals.
Page 2 – SECO7 Overview
Page 2 of the SECO7 information PDF has Notes 1 through 7, Material and Finish, Cleaning and Packaging data for SECO7 37 Degree Flared Tube Fitting Conical Seals.
Page 3 – SECO7 Overview
Page 3 of the SECO7 information PDF has Notes 8 through 12, Material and Finish, Cleaning and Packaging data for SECO7 37 Degree Flared Tube Fitting Conical Seals.
SECO7 Sizing Chart and Download
Download the SECO7 Sizing Chart PDF.
SECO7 Part Matrix
| Nominal TUBE OD | SECO7A/AT | SECO7C/CT | SECO7N/NS/NT | SECO7S/SS/ST |
|---|---|---|---|---|
| 1/8″ | SECO7A02 | SECO7C02 | SECO7N02 | SECO7S02 |
| 3/16″ | SECO7A03 | SECO7C03 | SECO7N03 | SECO7S03 |
| 1/4″ | SECO7A04 | SECO7C04 | SECO7N04 | SECO7S04 |
| 5/16″ | SECO7A05 | SECO7C05 | SECO7N05 | SECO7S05 |
| 3/8″ | SECO7A06 | SECO7C06 | SECO7N06 | SECO7S06 |
| 7/16″ | SECO7A07 | SECO7C07 | SECO7N07 | SECO7S07 |
| 1/2″ | SECO7A08 | SECO7C08 | SECO7N08 | SECO7S08 |
| 9/16″ | SECO7A09 | SECO7C09 | SECO7N09 | SECO7S09 |
| 5/8″ | SECO7A10 | SECO7C10 | SECO7N10 | SECO7S10 |
| 3/4″ | SECO7A12 | SECO7C12 | SECO7N12 | SECO7S12 |
| 7/8″ | SECO7A14 | SECO7C14 | SECO7N14 | SECO7S14 |
| 1″ | SECO7A16 | SECO7C16 | SECO7N16 | SECO7S16 |
| 1-1/8″ | SECO7A18 | SECO7C18 | SECO7N18 | SECO7S18 |
| 1-1/4″ | SECO7A20 | SECO7C20 | SECO7N20 | SECO7S20 |
| 1-3/8″ | SECO7A22 | SECO7C22 | SECO7N22 | SECO7S22 |
| 1-1/2″ | SECO7A24 | SECO7C24 | SECO7N24 | SECO7S24 |
| 1-3/4″ | SECO7A28 | SECO7C28 | SECO7N28 | SECO7S28 |
| 2″ | SECO7A32 | SECO7C32 | SECO7N36 | SECO7S36 |
| 2-1/2″ | SECO7A40 | SECO7C40 | SECO7N40 | SECO7S40 |
| 2-3/4″ | SECO7A44 | SECO7C44 | SECO7N44 | SECO7S44 |
| 3″ | SECO7A48 | SECO7C48 | SECO7N48 | SECO7S48 |
Table Notes:
Available Materials:
- SECO7A = Aluminum
- SECO7AT = Aluminum with Tin Plating
- SECO7C = Copper
- SECO7CT = Copper with Tin Plating
- SECO7N = Nickel
- SECO7NS = Nickel with Silver Plating
- SECO7NT = Nickel with Tin Plating
- SECO7S = Stainless Steel
- SECO7SS = Stainless Steel with Silver Plating
- SECO7ST = Stainless Steel with Tin Plating
Call or Fax for Information
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Fax: +1 714.546.3106
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