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Founder, 1929-2014
Speedy Bill
Since 1952
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Stainless Steel AN3 Tube Nuts

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Specs
Material Type:
Stainless Steel
Sold in Quantity:
Each
Finish:
Natural
Inside Diameter:
.26
Fitting End A:
-3 AN
Stainless Steel AN3 Tube NutsStainless Steel AN3 Tube NutsStainless Steel AN3 Tube NutsStainless Steel AN3 Tube Nuts
Stainless Steel AN3 Tube Nuts

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What's in the Box

Stainless steel AN3 tube nuts.

You may also be interested in:

Stainless Steel AN3 Tee Adapter
(Part #6178519)
                        Stainless steel AN3 tee adapter
                    
Stainless Jam Nut, 3/8 Inch-24 LH NF Fine Thread
(Part #91001153)
                        

If you've got spherical rod ends on your vehicle, you'll probably need jam nuts. You might also need them for tie-rod ends or other types of fittings and connectors. Our jam nuts are made from premium stainless steel and they're available with left hand threads.

These stainless steel fine thread jam nuts are for use with rod ends, heim joints, and clevis.

  • 3/8 Inch-24 LH NF Fine Thread
  • Available in left hand thread.
Aluminum Tube Nut Sleeve, -3 AN 3/16 Inch
(Part #6176063)
                        

These tube nut sleeves, when used in conjunction with our tube nuts (sold seperately), allow you to attach hard lines to AN fittings. You need to flare the tube to 37° to match the AN fitting. Not for use with 45° flared lines.

Fitting Thread Application Chart (GIF)

Aluminum Tube Nut Coupler, AN3 3/16 Inch
(Part #6176055)
                        

Use these tube nut couplers in conjunction with our tube sleeves (sold seperately) to seal bulkhead fittings to fuel cells, oil tanks and other applications using hard line fitting situations. You need to flare the tube to 37° to match the AN fittings. Not for use with 45° flared lines.

Fitting Thread Application Chart (GIF)

Stainless Steel -3 AN Brake Line Kit, 3-Hose, 20 Ft. Tubing
(Part #6178530)
                        

Speedway Motors is again the industry leader by offering a 100% stainless steel brake line kit. We know you don't want to cut corners on something as important as the brake system. Brake fluid and moisture in the brake lines and fittings are highly corrosive and attack softer metals.

Why settle for the anodized aluminum fittings offered by other companies? We start with 3/16" stainless steel tubing of 304 grade (rated at 6000 psi) that is double annealed to allow easy flaring. Then, we offer a variety of fittings made of 303 grade semi-polished stainless for the most corrosion resistant line kit in the industry! Not all fittings are polished, but with a little elbow grease you can have beautiful brake lines.

Designed for conventional live axle rear suspensions. Includes a 20 foot coil of 3/16" stainless steel line, nineteen -3 AN tube nuts, nineteen -3 AN tube sleeves, two -3 AN bulkhead tees, six -3 AN to 1/8"NPT adapters, two 90° -3 AN to 1/8" NPT adapters, one -3 AN straight bulkhead fitting, two -3 AN to 1/8" NPT female thru-frame fittings with stainless jam nuts, three -3 AN 18" braided stainless lines, and three 3/8" bulkhead nuts.

617-8530 Instructions (PDF)

NOTE: These kits are designed to use 37 degree flares only. Do not attempt to use with standard inverted flare brake connectors, which are 45 degree.

Learn more about flaring lines for our automotive fittings by reading our tech article. The Principles of Automotive Fittings

Stainless Steel -3 AN Brake Line Kit, 4-Hose, 20 Ft. Tubing
(Part #6178540)
                        

Speedway Motors is again the industry leader by offering a 100% stainless steel brake line kit. We know you don't want to cut corners on something as important as the brake system. Brake fluid and moisture in the brake lines and fittings are highly corrosive and attack softer metals.

Why settle for the anodized aluminum fittings offered by other companies? We start with 3/16" stainless steel tubing of 304 grade (rated at 6000 psi) that is double annealed to allow easy flaring. Then, we offer a variety of fittings made of 303 grade semi-polished stainless for the most corrosion resistant line kit in the industry! Not all fittings are polished, but with a little elbow grease you can have beautiful brake lines.

Designed for for independent rear axles (IRS). Kit includes a 20 foot coil of 3/16" stainless steel line, seventeen -3 AN tube nuts, seventeen -3 AN tube sleeves, two -3 AN bulkhead tees, six -3 AN to 1/8"NPT adapters, two 90° -3 AN to 1/8" NPT adapters, one -3 AN straight bulkhead fitting, two -3 AN to 1/8" NPT female thru-frame fittings with stainless jam nuts, four -3 AN 18" braided stainless hoses, and three 3/8" bulkhead nuts.

617-8540 Instructions (PDF)

NOTE: These kits are designed to use 37 degree flares only. Do not attempt to use with standard inverted flare brake connectors, which are 45 degree.

Learn more about flaring lines and how to select proper automotive fittings by reading our tech article. The Principles of Automotive Fittings

Steel AN4 Straight Bulkhead Adapter
(Part #324963204)
                        

Straight bulkhead AN 4 steel adapters.

Aluminum Flare Union Adapter Fitting, Blue, -3 AN
(Part #6176033)
                        

Aluminum 37° flare AN union fitting. Blue anodized finish.

Fitting Thread Application Chart (GIF)

Aluminum Flare Tee Adapter Fitting, Blue, -3 AN
(Part #6174298)
                        

Aluminum tee adapter for 37° AN flared fittings. Blue anodized finish.

Fitting Thread Application Chart (GIF)

Steel AN3 Tube Nuts - 6/Bag
(Part #617318)
                        Steel AN3 tube nuts. 6 per bag
                    
Steel Straight Adapter, -3 AN to -3 AN
(Part #6172403)
                        Steel AN to AN straight adapter.
                    
Steel AN3 to AN3 90 Degree Adapter
(Part #6172500)
                        Steel AN3 to AN3 90 degree adapter.
                    
Stainless Steel AN3 Tube Sleeve
(Part #6178512)
                        Stainless steel AN3 tube sleeve.
                    
Stainless Steel Brake Line, 3/16 Inch
(Part #6178510)
                        

Our 3/16" stainless steel tubing is made from 304 grade (rated at 6000 psi) which is double annealed to allow easy flaring.

NOTE: This line is intended to be used in conjunction with 37 degree AN # 3 style fittings which make use of a single flare. Stainless steel line will not work with 45 degree double flare 3/8"-24 flare nuts. We strongly suggest that the 37 degree single flare (flaring tool # 910-89524) be used when flaring this line for the AN # 3 tube nuts and sleeves.

Learn more about flaring lines and how to select proper automotive fittings by reading our tech article. The Principles of Automotive Fittings.

Brake System Builder Tip (GIF)

37 Degree Flaring Tool for Stainless Steel Line
(Part #91089524)
                        

This is the best flaring tool for the money we have found. It has a feed screw with a hardened flaring cone eccentrically mounted in needle bearings which produces a rolling action for even metal flow. This provides uniform wall thickness without galling. It will put a 37 degree flare in 3/16”, 1/4”, 5/16”, 3/8”, ½”, 5/8” and 3/4” tubing. We recommend this tool when flaring 3/16” stainless steel brake line.

  • Provides smooth, uniform flares with minimum effort
  • Feed screw handle requires less motion and effort than standard handle
  • Flares steel, stainless steel, hard copper and brass thru wall thickness of .035"

Instructions (PDF)

Learn more about flaring lines for our automotive fittings by reading our tech article. The Principles of Automotive Fittings.