FRAGOLA
Fragola -8 AN x M16 x 1.5 EFI Adapter Fitting Straight
- PART NUMBER:
- 491988-BL
- MPN:
- 491988-BL
- Availability:
- Ships from Manufacturer
- Shipping:
- Free Over $98 In U.S. 48
- Type:
- Straight Adapter Fittings
- Material:
- Aluminum
- Color:
- Black
- Adapter Attachment 1:
- Male AN
- Adapter Attachment 2:
- Male Metric
- Swivel:
- No
- O-Ring Included:
- No
- Notes:
- Sold Individually
Description
Fragola -8 AN x M16 x 1.5 EFI Adapter Fitting Straight
A-N Threads
Use the profiles below to determine the correct A-N thread before ordering. The corresponding chart displays the outer diameter of the metal tube and thread size.
A-N Size | Metal Tube O.D. | Thread Size |
3 | 3/16″ | 3/8-24 UNJF |
4 | 1/4″ | 7/16-20 UNJF |
6 | 3/8″ | 9/16-18 UNJF |
8 | 1/2″ | 3/4-16 UNJF |
10 | 5/8″ | 7/8-14 UNJF |
12 | 3/4″ | 1 1/16-12 UNJF |
16 | 1″ | 1 5/16-12 UNJF |
20 | 1 1/4″ | 1 5/8-12 UNJF |
Torque Specifications
Many people over tighten the aluminum fitting on the adapter, which distorts the 37 degree seat, and may cause leakage. Both the threads and the seat surface should have a drop or two of oil to smooth the tightening process. The maximum torque specifications are listed here. (An alternate method of tightening is to bring the nut to “hand-tight” and then rotate it another turn with the proper wrench.)
Fitting Size | Max. Torque in Foot Pounds |
3 | 8.75 |
4 | 11.5 |
6 | 16.25 |
8 | 29 |
10 | 35 |
12 | 45 |
16 | 70 |
20 | 85 |
Size Chart
A-N Thread | Pipe Thread | B-Nut Hex | ||||
A-N Size | Tube Diameter | Thread Size (S.A.E.) | Pipe Thread | Threads Per Inch | A-N Size | Hex Diameter |
-2 | 1/8″ | 5/16-24 | 1/16″ | 27 | ||
-3 | 3/16″ | 3/8-24 | 1/8″ | 27 | #3 | 1/2″ |
-4 | 1/4″ | 7/16-20 | 1/4″ | 18 | #4 | 9/16″ |
-6 | 3/8″ | 9/16-18 | 3/8″ | 18 | #6 | 11/16″ |
-8 | 1/2″ | 3/4-16 | 1/2″ | 14 | #8 | 7/8″ |
-10 | 5/8″ | 7/8-14 | 3/4″ | 14 | #10 | 1″ |
-12 | 3/4″ | 1 1/16-12 | 1″ | 11 | #12 | 1 1/4″ |
-16 | 1″ | 1 5/16-12 | #16 | 1 1/2″ | ||
-20 | 1 1/4″ | 1 5/8-12 | #20 | 1 7/8″ | ||
-24 | 1 1/2″ | 1 7/8-12 | ||||
-28 | 1 3/4″ | 2 1/4-12 | ||||
-32 | 2″ | 2 1/2-12 |