Tube Nut & Sleeves 6AN Aluminum. Threads: 6AN (9/16-18 UNF). for 3/8" OD Hardlines/Tubes. For all 3/8" OD aluminum/stainless steel tubes. 37° flaring tool required to flare the end of the tube. 8x sleeves.
3/8" OD Hardline Tube Nut & Sleeves Black Anodized 6AN Aluminum 10 Sets
3/16" OD Hardline Tube Nut & Sleeves Black Anodized 3AN Aluminum 10 Sets
5/16" OD Aluminum Hard Fuel Line 10 Feet Hardline Tube Thickness is 0.039"
Aluminum Tube Nut -4AN 6AN 8AN 12AN 16AN Hardline Tube Nuts Fitting Adapter USA.
2Pcs 4AN Male to 1/4" OD Hardline Compression Fitting Adapter Aluminum
4 Pcs Fuel Hardline Tube Fitting 6 AN Male Flare to 3/8 Adapter Anodized Black