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Hardware Guru's, need a brass reducer

k20

k20

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Alrighty, cant find it locally, or in any of the normal places, hoping someone on here knows where I can get a brass reducer, from 1/2"x20 to 1/8" NPT.

Extremely oddball I know, just wondering if its out there. Heck, doesnt even have to be brass, could be any metal, just not plastic.
 
so you're talking a 1/2" UNF hole to a 1/8" NPT female? A bushing then? I'll be the first to say I'll bet you it doesn't exist.

Now a few questions. What is the application this is in. What kind of circuit? Air water fuel oil hydraulic?

Next, how are you planning to get the 1/2 straight fine thread to seal?

Next, Are you certain that its 1/2" fine? Could it be British straight pipe, or metric?
 
naw, its a friend of mine wanting to put a temp sensor in place of his tranny drain plug. Drain plug threads are 1/2"x20 (bolt threads, I dont know what all the little 3 letter prefixes besides NPT mean), and the sensors threads are 1/8" NPT. So it needs to be threaded 1/2"x20 on the outside, and 1/8"NPT on the inside.


Just to be clear, something that looks like
ear-991201_w.jpg
 
Drill and tap the plug to 1/8" pipe, don't tap it too deep, reuse the original copper washer. easy fix man. I drill and tap 1"-2" 90* fittings regularly for 1/4" guage lines. or other applications.
 
Yeh, I figured have to end up doing that, just figured be easier, and less chance of screwing up if found the bushing/reducer/doo-hickey/thing-a-ma-bob
 
fawlk brothers hardware on 49 has odd and hard to find stuff might want to give them a try
 
yep im at uncc
they are across the street or at least in the same area as tarheal 4wd its actuly tryon not 49 there i think (dam charlotte roads)


colby
 
yeh thats 29/49, it splits a little on down the road. I know where your talking about now. Thanks man, maybe theyll have it.
 
hope they have it for you they are the ony place i can find some things like metric set screws. if they dont have it they will help you figure out the best way to make it up
 
I want you to know I tried all my sources to find this for you, but came up empty handed. I spent 1/2 an hour on it.. sorry.

John
 
A -5 ORB fitting has 1/2-20 threads. You could buy a -6 JIC to -5 ORB adapter fitting and then drill & tap an -6 JIC cap with the 1/8NPT threads. Screw the -5 x -6 adapter in with a crush washer instead of the o-ring. Use the JIC cap for draining the pan.

You could use AN fittings in place of the JIC (they are identical except for material), but for that location I'd highly recommend sticking with steel fittings.
 
ntsqd said:
A -5 ORB fitting has 1/2-20 threads. You could buy a -6 JIC to -5 ORB adapter fitting and then drill & tap an -6 JIC cap with the 1/8NPT threads. Screw the -5 x -6 adapter in with a crush washer instead of the o-ring. Use the JIC cap for draining the pan.

You could use AN fittings in place of the JIC (they are identical except for material), but for that location I'd highly recommend sticking with steel fittings.
Click to expand...


Sure, but for all that he could drill and tap the plug hes got.


K.I.S.S.
 
other ways..

I've seen oil drain plugs with a "piggyback" plug in the center you remove to drain the oil--they are 1/2"X20 thread(possibly oversized to make up for stripped threads though)--the center plug is a 1/8" pipe thread...thats one way to get what you want..:laugh:

But for all the hunting you'll do to find one,I think brazing a 1/2" fine thread nut into the pan would be easier and faster..probably cheeper too!..:crazy:
 
Yeah, I've actually bought these before for marine water pump applications:

http://www.fittingsandadapters.com/malortofempi.html

part #32-5-2. These are steel, not brass though.

k20 said:
Alrighty, cant find it locally, or in any of the normal places, hoping someone on here knows where I can get a brass reducer, from 1/2"x20 to 1/8" NPT.

Extremely oddball I know, just wondering if its out there. Heck, doesnt even have to be brass, could be any metal, just not plastic.
Click to expand...
 
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