Today's Message Index:
----------------------
1. 09:36 AM - Re: Nut Nomenclature (steve)
2. 10:44 AM - Re: Nut Nomenclature (Mauri)
3. 11:19 AM - Re: Nut Nomenclature (Dean Pichon)
4. 10:31 PM - Re: Nut Nomenclature (Greg Young)
Message 1
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| Subject: | Re: Nut Nomenclature |
Dan,
Spend $6 at Genuine Aircraft Hardware
(http://www.gen-aircraft-hardware.com) for a good AN/MS/NAS hardware
reference book. It is a great cross reference between the AN, MS, and
NAS part numbers. Reference book pages are also viewable on the web
site. The Spruce catalog is OK, but usually does not cross reference AN
to MS to NAS numbers.
Many of (most of?) the AN part numbers have been superseded by MS
numbers, but everyone in the GA world still seems to use the AN numbers.
Here's what the hardware reference book says:
AN365-xxxA translates to MS21044N(xx). This is a standard cad plated
steel nylock nut. The "A" suffix sometimes (maybe most of the time)
gets dropped off, probably because this is the nut used in most aircraft
applications. Van's drawings do not use the "A" suffix for the standard
steel hardware call out.
There is also a AN365-xxxC, now called a MS 21045C. This is a stainless
steel version of the standard size nylock nut.
Perhaps the smaller nut you saw was really a AN364-xxxA or AN364-xxxC
which translates into other MS numbers. This is a low profile nylock
nut (cad plated steel, or stainless).
Confused yet? :-)
good luck,
Steve A.
slowwwww build RV-6A
messydeer wrote:
>
> Hello!
>
> Is there any difference between AN365-1032 and AN365-1032A? A new
> number I think is MS20365-1032. Likewise AN365-428 and AN365-428A. I
> just called Spruce and they said there was no difference, but then I
> did a net search. Some RV builder had photos of a 428 and 428A. One was
> about half the height of the other.
>
> I looked at gahco's files and it didn't help much. Don't know of any
> other place to search.
>
> Cheers,
> Dan
Message 2
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| Subject: | Re: Nut Nomenclature |
Dan,
Check out East Coast Aviation Supplies.
Web site: www.ecasinc.com
Good catalog which I use for reference and very competitive pricing also
easy to do business with.
I have no interest in this company, financial or otherwise.
Mauri
RV-8
finishing forever
Polson, MT
----- Original Message -----
From: "messydeer" <messydeer@yahoo.com>
Sent: Wednesday, February 20, 2008 6:04 PM
Subject: RV-List: Nut Nomenclature
>
> Hello!
>
> Is there any difference between AN365-1032 and AN365-1032A? A new
> number I think is MS20365-1032. Likewise AN365-428 and AN365-428A. I
> just called Spruce and they said there was no difference, but then I
> did a net search. Some RV builder had photos of a 428 and 428A. One was
> about half the height of the other.
>
> I looked at gahco's files and it didn't help much. Don't know of any
> other place to search.
>
> Cheers,
> Dan
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=165301#165301
>
>
> --
> 10:26 AM
>
>
Message 3
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| Subject: | Nut Nomenclature |
I just looked at the AN365 specification. The "A" suffix indicates a "non-m
etallic insert". According to the spec, An AN365-428 is a 1/4-28 nut "eith
er all metal or with non-metallic insert". Adding an "A" after the dash nu
mber forces a non-metallic insert.
AN365 is marked "INACTIVE FOR NEW DESIGN AFTER 11 MARCH 1957. USE STANDARD
MS20365". MS20365 has been superceded by MS21044 Specification MS21044 was
cancelled 12 MAY 1999 and replaced by NASM21044. This specification does,
however, retain the MS part numbering system. NASM21044 is an active speci
fication. This specification offers nuts in steel, aluminum, brass, and st
ainless. All flavors come with non-metallic inserts.
I hope this helps. Regards,> Date: Thu, 21 Feb 2008 09:32:14 -0800> From: s
tevea@svpal.org> To: rv-list@matronics.com> Subject: Re: RV-List: Nut Nomen
> Spend $6 at Genuine Aircraft Hardware > (http://www.gen-aircraft-hardwar
e.com) for a good AN/MS/NAS hardware > reference book. It is a great cross
reference between the AN, MS, and > NAS part numbers. Reference book pages
are also viewable on the web > site. The Spruce catalog is OK, but usually
does not cross reference AN > to MS to NAS numbers.> > Many of (most of?) t
he AN part numbers have been superseded by MS > numbers, but everyone in th
e GA world still seems to use the AN numbers.> > > Here's what the hardware
reference book says:> AN365-xxxA translates to MS21044N(xx). This is a sta
ndard cad plated > steel nylock nut. The "A" suffix sometimes (maybe most o
f the time) > gets dropped off, probably because this is the nut used in mo
st aircraft > applications. Van's drawings do not use the "A" suffix for th
e standard > steel hardware call out.> > There is also a AN365-xxxC, now ca
lled a MS 21045C. This is a stainless > steel version of the standard size
nylock nut.> > Perhaps the smaller nut you saw was really a AN364-xxxA or A
N364-xxxC > which translates into other MS numbers. This is a low profile n
ylock > nut (cad plated steel, or stainless).> > > Confused yet? :-)> > > g
ood luck,> Steve A.> slowwwww build RV-6A> > > messydeer wrote:> > --> RV-L
ist message posted by: "messydeer" <messydeer@yahoo.com>> >> > Hello!> > >
> Is there any difference between AN365-1032 and AN365-1032A? A new> > numb
er I think is MS20365-1032. Likewise AN365-428 and AN365-428A. I> > just ca
lled Spruce and they said there was no difference, but then I> > did a net
search. Some RV builder had photos of a 428 and 428A. One was> > about half
the height of the other.> >> > I looked at gahco's files and it didn't hel
p much. Don't know of any> > other place to search.> >> > Cheers,> > Dan> >
======================> > >
_________________________________________________________________
Need to know the score, the latest news, or you need your Hotmail=AE-get yo
ur "fix".
http://www.msnmobilefix.com/Default.aspx
Message 4
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| Subject: | Nut Nomenclature |
Here are some special fasteners that aren't in the reference book. They can
be pretty handy and don't need approval for use on experimentals.
http://www.metricscrew-toolco.com/pg4.html
Regards,
Greg Young
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