# AN fittings ... american or metric threads ? **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [August 25, 2005, 8:17pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806 "2005-08-25T20:17:18Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [August 25, 2005, 8:17pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/1 "2005-08-25T20:17:18Z")
gonna be installing toms regulator when it comes in and i was wondering about this both sides of the reg. take an -6 fittings and if its a fitting size thats available at the hardware or parts store i was considering simply mounting the regulator on the engine and running brake line from the modified old reg to the new reg possible , or do we have to get an fittings for the job ? ---
**Author:** ![Viper966](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/viper966/32/7268_2.png) [@Viper966](https://forums.speedlife.net/u/Viper966)\ **Post date:** [August 25, 2005, 10:17pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/2 "2005-08-25T22:17:03Z")
why do u always like to take shortcuts? ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [August 25, 2005, 10:28pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/3 "2005-08-25T22:28:47Z")
hardline is not a shortcut , its simply a choice that saves money look at the shortcut these guys took !!! ![http://www.magnumforce.com/images/product_images/nitrous/nitrous_blower_plate.jpg](http://www.magnumforce.com/images/product_images/nitrous/nitrous_blower_plate.jpg) ---
**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\ **Post date:** [August 25, 2005, 10:33pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/4 "2005-08-25T22:33:15Z")
Go to ferry and get any and all an fittings you need, they will also assemble the line for you:) If you have any issues trying to adapt the unit let me know I may be of some help. Don ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [August 25, 2005, 11:33pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/5 "2005-08-25T23:33:41Z")
found the thread sizes … woot ! AN Size Metal Tube O.D. Thread Size 2 1/8" 5/16-24 SAE 3 3/16" 3/8-24 SAE 4 1/4" 7/16-20 SAE 5 5/16" 1/2-20 SAE 6 3/8" 9/16-18 SAE 8 1/2" 3/4-16 SAE 10 5/8" 7/8-14 SAE 12 3/4" 1-1/16-12 SAE 16 1" 1-5/16-12 SAE 20 1-1/4" 1-5/8-12 SAE 24 1-1/2" 1-7/8-12 SAE 28 1-3/4" 2-1/4-12 SAE 32 2" 2-1/2-12 SAE ---
**Author:** ![walter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/walter/32/7202_2.png) [@walter](https://forums.speedlife.net/u/walter)\ **Post date:** [August 26, 2005, 10:20am UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/6 "2005-08-26T10:20:17Z")
:sigh: ---
**Author:** ![RacerX](https://avatars.discourse-cdn.com/v4/letter/r/5e9695/32.png) [@RacerX](https://forums.speedlife.net/u/RacerX)\ **Post date:** [August 26, 2005, 2:56pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/7 "2005-08-26T14:56:59Z")
The A/N stands for Army/Navy so they’re american but I see you figured that out already. ---
**Author:** ![mike125k](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mike125k/32/7282_2.png) [@mike125k](https://forums.speedlife.net/u/mike125k)\ **Post date:** [August 26, 2005, 3:09pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/8 "2005-08-26T15:09:25Z")
it doesnt matter that they have SAE thread, they won’t seal unless you use use other AN fittings…but its only fuel lines youre trying to ghetto rig… ---
**Author:** ![RacerX](https://avatars.discourse-cdn.com/v4/letter/r/5e9695/32.png) [@RacerX](https://forums.speedlife.net/u/RacerX)\ **Post date:** [August 26, 2005, 3:29pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/9 "2005-08-26T15:29:32Z")
> [@mike125k](#): > > it doesnt matter that they have SAE thread, they won’t seal unless you use use other AN fittings…but its only fuel lines youre trying to ghetto rig… You just need to use A/N flare adapters to go to hardline ---
**Author:** ![RacerX](https://avatars.discourse-cdn.com/v4/letter/r/5e9695/32.png) [@RacerX](https://forums.speedlife.net/u/RacerX)\ **Post date:** [August 26, 2005, 3:33pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/10 "2005-08-26T15:33:02Z")
[http://www.pitstopusa.com/plumbing.htm](http://www.pitstopusa.com/plumbing.htm) good selection here ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [August 26, 2005, 3:55pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/11 "2005-08-26T15:55:32Z")
> [@RacerX](#): > > You just need to use A/N flare adapters to go to hardline thank you, the answer i wanted. ironicly about 2 minutes ago i also namanged to find online that an fittings have a 45\* flare, which is what i was trying to find last night when i asked and i think i can manage to run some steel fuel lines that seal perfectly, please only accuse me of ghetto rigging fuel lines when im using barb fittings and worm clamps to run pressure lines ---
**Author:** ![mike125k](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mike125k/32/7282_2.png) [@mike125k](https://forums.speedlife.net/u/mike125k)\ **Post date:** [August 26, 2005, 4:41pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/12 "2005-08-26T16:41:16Z")
> [@RacerX](#): > > You just need to use A/N flare adapters to go to hardline ummmm…did i not say they wont seal unless you go to another AN fitting? wouldn’t an AN adaptor be an AN fitting??? ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [August 26, 2005, 4:47pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/13 "2005-08-26T16:47:14Z")
ADAPTER being the key word, they sell fittings that are 45\* on one side and 37 on the other the 45 side seals to the an port on the reg, the 37 seals to the flare on the brake line, simple as that ---
**Author:** ![JettaX](https://avatars.discourse-cdn.com/v4/letter/j/838e76/32.png) [@JettaX](https://forums.speedlife.net/u/JettaX)\ **Post date:** [August 26, 2005, 7:56pm UTC](https://forums.speedlife.net/t/an-fittings-american-or-metric-threads/1806/14 "2005-08-26T19:56:50Z")
Just go to ferry, they will have everything you will need, will put it together for you, and shouldn’t charge you TOO TOO much. And they are nice to boot.