An Fittings Adapters

An Fittings Adapters is normally used to connect SAE standard of hydraulic tubing and hose assemblies system. AN (Air Force - Navy Aeronautical Standard) and AND (Air Force - Navy Aeronautical Design Standard) are standards used by the U.S. Military in aviation applications. AN fittings are manufactured to meet above standards. These fittings include the 37°flare, flare-less, hose connections, "banjo" type fittings, specialized flange fittings, pipe fittings and other types of connections.

An Fittings Adapters is normally used to connect SAE standard of hydraulic tubing and hose assemblies system. AN (Air Force - Navy Aeronautical Standard) and AND (Air Force - Navy Aeronautical Design Standard) are standards used by the U.S. Military in aviation applications. AN fittings are manufactured to meet above standards. These fittings include the 37°flare, flare-less, hose connections, "banjo" type fittings, specialized flange fittings, pipe fittings and other types of connections.

 

An fittings adapters type is commonly used in Many aircraft/aerospace applications are moving towards aluminum and titanium for optimized weight-to-strength parameters.

 

Standards of New An Fittings Adapter is as per Procurement Specification AS4841B Fittings, 37° Internal Flare, Fluid Connection: This SAE Aerospace Standard (AS) establishes the requirements for 37° flared tube fittings or machined internal cone fluid connection fittings for use with 37° external cone, spherical nose and seal ring fittings in all types of aerospace fluid systems.

 

Old version of AN flare fittings conform to MIL-F-5509 specifications, and also AS4841through AS4843 and AS4975. AN fittings remain prevalent today. However, the U.S. Military is canceling many of the true AN/AND standards and replacing them with AS (Aerospace Standards) standards developed, again, by SAE. SAE/ISO 37°Flare: Some fittings conform to MIL-F-18866 as shown on MS51500 through MS51534.

 

An Fittings Adapters VS JIC Fittings Differe4nce

An Size

-2

-3

-4

-5

-6

-8

-10

-12

-16

-20

-24

-28

-32

Tube OD

1/8"

3/16"

1/4"

5/16"

3/8"

1/2"

5/8"

3/4"

1"

1 1/4"

1 1/2"

1 3/4"

2"

Nominal Hose ID

1/8"

3/16"

1/4"

5/16"

3/8"

1/2"

5/8"

3/4"

1"

1 1/4"

1 1/2"

1 3/4"

2"

Actual Hose ID

1/16"

1/8"

3/16"

1/4"

5/16"

7/16"

1/2"

5/8"

7/8"

1 1/8"

1 3/8"

1 5/8"

1 3/4"

Thread

5/16-24

3/8-24

7/16-20

1/2-20

9/16-18

3/4-16

7/8-14

1-1/16-12

1-5/16-12

1-5/8-12

1-7/8-12

2-1/4-12

2-1/2-12



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