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O-Ring Boss Adapters and Fittings

O-Ring Bosses (ORB) use the same SAE threads as AN fittings, but ORBs do not have the 37° sealing flare that AN fittings use. O-Ring bosses seal around the face of the female port with an O-ring. Sizes are the same between AN and ORB fittings, but AN fitting nomenclature is typically "xxAN" (6AN, 10AN, 12AN) where ORB nomenclature is simply a dash number, "-xx" (-6, -10, -12).

O-Ring boss adapters require a chamfer in the female port to provide a proper seat for the O-ring. All of these adapters include the O-ring. The AN920, AN921, and AN922-sytle angled adapters also include an aluminum sealing washer. Equivalent AN numbers are given for reference where applicable. These fittings conform to JIC and SAE specifications.

In addition to these male-to-male adapters, we also offer several different O-Ring Boss to AN Hose Ends to connect directly to your standard braided AN hose. We also stock an extensive selection of M22x1.5 O-Ring Boss to Male AN Adapters for Setrab oil coolers.

Note: AN nomenclature can be confusing because the nominal size does not refer to the size of the threads. If the sizes are confusing you, please have a look at our Technical Document explaining The Logic Behind AN Hose and Fitting Sizes.

Recent Top Seller for this product group

AN920 AN Male to O-Ring Boss Adapter - Straight, Blue

AN920 AN Male to O-Ring Boss Adapter - Straight, Blue

Our blue anodized aluminum AN920-style Straight O-Ring Boss to Male AN Adapters conform to JIC and SAE specifications. An O-ring is included for the O-ring boss side.

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Part No.
Description
Price
Status
AN920 AN Male to O-Ring Boss Adapter - Straight, Blue

3603-Size-Size 

AN920 AN Male to O-Ring Boss Adapter - Straight, Blue

$4.99
to
$19.99*
In Stock
AN920 AN Male to O-Ring Boss Adapter - Straight, Black

3604-Size-Size 

AN920 AN Male to O-Ring Boss Adapter - Straight, Black

$4.99
to
$31.99*
In Stock
AN921 O-Ring Boss Adapter - 90' Elbow

3287-Size-Size 

AN921 O-Ring Boss Adapter - 90' Elbow

$13.99
to
$71.99*
In Stock
AN922 O-Ring Boss Adapter - 45' Elbow

3279-Size-Size 

AN922 O-Ring Boss Adapter - 45' Elbow

$10.99
to
$65.99*
In Stock
Swivel O-Ring Boss Adapter - 45' Elbow

3279-001-Size-Size 

Swivel O-Ring Boss Adapter - 45' Elbow

$17.99
to
$42.99*
In Stock
AN Female to O-Ring Boss Adapter - Straight, Black Aluminum

3600-001-Size-Size 

AN Female to O-Ring Boss Adapter - Straight, Black Aluminum

$25.99
to
$51.99
In Stock
Aeromotive -8 ORB Male to -6 ORB Male Swivel Union

AEI-15681 

Aeromotive -8 ORB Male to -6 ORB Male Swivel Union

$27.03In Stock
Aeromotive -8 ORB Male to -10 ORB Male Swivel Union

AEI-15638 

Aeromotive -8 ORB Male to -10 ORB Male Swivel Union

$21.83In Stock
Aeromotive -10 ORB Male to -10 ORB Male Swivel Union

AEI-15640 

Aeromotive -10 ORB Male to -10 ORB Male Swivel Union

$30.18In Stock
Aeromotive -10 ORB Male to -12 ORB Male Swivel Union

AEI-15682 

Aeromotive -10 ORB Male to -12 ORB Male Swivel Union

$33.62In Stock
Aeromotive -12 ORB Male to -12 ORB Male Swivel Union

AEI-15680 

Aeromotive -12 ORB Male to -12 ORB Male Swivel Union

$37.08In Stock
Aeromotive -10 ORB Male to -10 ORB Female with -6 Port

AEI-15639 

Aeromotive -10 ORB Male to -10 ORB Female with -6 Port

$30.18In Stock
O-Ring Seal for Standard O-Ring Ports

3244-Size 

O-Ring Seal for Standard O-Ring Ports

$0.49
to
$0.99*
In Stock
Female Aluminum AN Weld Bung (O-ring Port)

3228-126-Size 

Female Aluminum AN Weld Bung (O-ring Port)

$7.99
to
$36.99*
In Stock
Canton -12 O Ring Boss Adapter (Pair) - 1 1/16  x 12

1280-Size 

Canton -12 O Ring Boss Adapter (Pair) - 1 1/16 x 12

$25.99
to
$29.00
In Stock
Setrab M22 to 8AN Male Adapter, Straight

SET-M22AN08-SE 

Setrab M22 to 8AN Male Adapter, Straight

$9.99In Stock
Setrab M22 to 10AN Male Adapter, Straight

SET-M22AN10-SE 

Setrab M22 to 10AN Male Adapter, Straight

$9.99In Stock
Setrab M22 to 12AN Male Adapter, Straight

SET-M22AN12-SE 

Setrab M22 to 12AN Male Adapter, Straight

$10.99In Stock
Setrab 019 Viton O-Ring for M22 Ports

SET-20-568019-V10 

Setrab 019 Viton O-Ring for M22 Ports

$0.39*In Stock
(HAO) Loctite O-Ring Making Kit, SAE

LT-00112 

(HAO) Loctite O-Ring Making Kit, SAE

$82.99In Stock

  * Quantity Pricing Available