Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

ring terminals

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

gvjantzi(at)yahoo.com
Guest

Posted: Sat May 05, 2007 7:55 am Post subject: ring terminals

I am told that there is A difference between aircraft terminals and hardware store terminals. are the ring terminals sold at aircraft spruce  aircraft terminals or are they the same as hardware store termonals? looking for some feed back thanks Gerry

   Don't pick lemons.

 See all the new 2007 cars at Yahoo! Autos. [quote][b]

Bruce(at)glasair.org
Guest

Posted: Sat May 05, 2007 8:14 am Post subject: ring terminals

Generally on  MIL spec terminals there is a metal band that crimps the insulation, this band  is covered by the insulator. On cheaper hardware store/automotive copies the  metal band is missing and all that grips the wire insulator is the plastic of  the terminal.

  

  

 

Bruce

www.glasair.org

   [quote]   

   --

ceengland(at)bellsouth.ne
Guest

Posted: Sat May 05, 2007 9:38 am Post subject: ring terminals

Perhaps even more important is the quality of the crimper. The typical 

hardware crimper isn't likely to give that 'gas tight' joint to prevent 

corrosion within the joint.



Bruce Gray wrote:

[quote] Generally on MIL spec terminals there is a metal band that crimps the 

 insulation, this band is covered by the insulator. On cheaper hardware 

 store/automotive copies the metal band is missing and all that grips the 

 wire insulator is the plastic of the terminal.

  

  

 

 Bruce

 www.glasair.org

  

 

     --

bkuc1(at)verizon.net
Guest

Posted: Sat May 05, 2007 9:42 am Post subject: ring terminals

I have seen spade connectors at autozone that had the metal  that crimps the insulators.  There were some other ones that only crimped  the wire only but these looked like they could me of the same type.  I did  not see anthing on the package that had any mils ratings on there  tho.

   From:  owner-aeroelectric-list-server(at)matronics.com  [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Bruce  Gray

Sent: Saturday, May 05, 2007 12:12 PM

To:  aeroelectric-list(at)matronics.com

Subject: RE: ring  terminals

 Generally on  MIL spec terminals there is a metal band that crimps the insulation, this band  is covered by the insulator. On cheaper hardware store/automotive copies the  metal band is missing and all that grips the wire insulator is the plastic of  the terminal.

Bruce

www.glasair.org

   [quote]   

   --

rtitsworth

Joined: 16 Jan 2006
Posts: 76
Location: Detroit, Mi

Posted: Sat May 05, 2007 10:17 am Post subject: ring terminals

What you are looking for is AMP PIDG (or equivalent).  On the MIL spec (AMP PIDG), the metal part of the crimp sleeve is longer (deeper).  They can look similar to the cheep HW/auto style from the outside.  You have to look “into” the sleeve and assess the length (depth) of the metal part of the crimp area.  Ideally, the metal part is long (deep) enough to crimp onto both the bare wire and the insulation (if done correctly).  This is rarely the case with the cheep HW/auto versions.  On those, only the plastic part of the crimp sleeve crimps onto the insulation (which is insufficient to properly secure the wire).  Unfortunately I’ve found, most ads/catalogs usually don’t clearly specific whether they are the cheep HW/auto type or the better Aero (PIDG) type.  

   

See here for AMP PIDG data sheet: http://ecommas.tycoelectronics.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F36161%7FZ%7Fpdf%7FEnglish%7FENG_CD_36161_Z.pdf  

   

You can get the correct ones from here: http://www.bandc.biz/cgi-bin/ez-catalog/cat_display.cgi?12X358218#s814r8-10 at reasonably competitive prices (20 - 30 cents each).  I’d be interested if you find them much cheaper somewhere else.  

   

These also appear correct:  http://www.aircraftspruce.com/catalog/elpages/insulterms.php  Note in the photo,  the metal part of the crimp barrel is nearly as long as the plastic insulation (versus only ½ as long as on typical HW/auto style.  

   

   

Rick  

   [quote]  

--

gvjantzi(at)yahoo.com
Guest

Posted: Sat May 05, 2007 1:03 pm Post subject: ring terminals

thanks for all the feed back I now have part# for aircraft spruce  thanks again Gerry

  	         Ahhh...imagining that irresistible "new car" smell?

 Check out [url=http://us.rd.yahoo.com/evt=48245/*http://autos.yahoo.com/new_cars.html;_ylc=X3oDMTE1YW1jcXJ2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDbmV3LWNhcnM-]new cars at Yahoo! Autos.[/url]  [quote][b]

JOHN TIPTON

Joined: 17 Sep 2006
Posts: 239
Location: Torquay - England

Posted: Sat May 05, 2007 1:33 pm Post subject: ring terminals

Also: 'SteinAir'

  

  

  

 [quote]   ---

Bruce(at)glasair.org
Guest

Posted: Sat May 05, 2007 1:34 pm Post subject: ring terminals

Stein Air is  better.

  

 http://steinair.com/

  

 Bruce

www.glasair.org

  

 [quote]   

   --

lerohl(at)gctel.net
Guest

Posted: Sat May 05, 2007 1:39 pm Post subject: ring terminals

There are  three differences between the hardware  store variety of terminals and Mil Spec terminals.  As others here have  said, there is a sleeve that grips the insulation to spread the mechanical loads  to minimize flexing where the wire exits the crimp.  This is where the wire  will work harden, become brittle and break.  Secondly, the seam on the  barrel is brazed closed on the Mil Spec terminals.  Many of the hardware  store variety are just formed into a barrel that will open when crimped  unless the crimp is done correctly.  The third difference is that hardware  store terminals usually have vinyl insulation.  The Mil Spec demands nylon  insulation which will outlast vinyl many times over.  In addition, Mil Spec  products are produced under exacting quality standards.

  

 Go here to find a good variety of Mil Spec terminals and tools  that properly crimp them.  http://www.terminaltown.com/

  

 Regards,

 Gaylen Lerohl

 Terminaltown.com

 [quote]   ---

Bill McMullen

Joined: 23 Nov 2006
Posts: 7

Posted: Sun May 06, 2007 9:14 am Post subject: Re: ring terminals

If you're ordering terminals from Aircraft Spruce, I'd recommend that you double check the AMP part numbers on them.  Hard to believe, but quite a while ago I ordered some butt splices from them and received the cheap vinyl ones without the extra sleeve ... they immediately went into the garbage can.  I also notice that some of their ring terminals use the word "vinyl" in the description.  I can vouch that B&C, Terminal Town and others know what "real" PIDG Mil-Spec terminals are.

khorton01(at)rogers.com
Guest

Posted: Sun May 06, 2007 11:39 am Post subject: ring terminals

On 6 May 2007, at 13:14, Bill McMullen wrote:



 	  Quote: 	
		   

 <CircleM(at)telusplanet.net>



 If you're ordering terminals from Aircraft Spruce, I'd recommend  

 that you double check the AMP part numbers on them.  Hard to  

 believe, but quite a while ago I ordered some butt splices from  

 them and received the cheap vinyl ones without the extra sleeve ...  

 they immediately went into the garbage can.  I also notice that  

 some of their ring terminals use the word "vinyl" in the  

 description.  I can vouch that B&C, Terminal Town and others know  

 what "real" PIDG Mil-Spec terminals are.




	


Other people have reported ordering plumbing fittings with MS part  

numbers, and receiving fittings without any markings on them.  The  

Mil-Spec requires that hardware be marked, so these fittings clearly  

did not meet the Mil-Spec.  Anyone ordering stuff from ACS should  

inspect what they get very carefully to ensure they have not  

substituted a lower quality item.



http://www.vansairforce.com/community/showthread.php?t=15575



I won't speculate as to whether these problems are due to poor  

quality control or fraud.



Kevin Horton         RV-8 (finishing kit)

Ottawa, Canada

http://www.kilohotel.com/rv8

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum