Aerospace Fasteners

[goldleader]

Hi guys... I am working at an Aerospace company... their hiring procedure is top-notch, coz` they hired me... a guy who has NO training and NO knowledge in the field (I also hate to fly!)

So, the question is the following...

we are building something that goes somewhere in a flying machine... we have blueprints but we are a little bit puzzled about the following fasteners

nasm45938/11-10cl

nasm45938/11-6cl

We cannot find detailed information on any website. Does somebody of you have access to some of these info? (Pictures also would be great).

Thanks

[Q_Goest]

In the US I've seen military standards such as MSxxxxx-xx, ANxxxxx-xx and NASxxxxx-xx (where xxxxx-xx are numbers) but not what you've written. It looks close enough however, that it might be a misprint.

I'd check with the customer and see if they can explain for you.

[Astronuc]

Look here -

http://pemflex.com/design_info/list_by_type.html

One finds M45938/11-6C with the equivalent - AC-832-2

Search on AC-832-2 reveals - http://select.pemnet.com/keySearch.php?KEY1=AC-832-2&FASTACT=KEY_SEARCH1&quickGlobal=quick&x=17&y=6 , which leads to

http://select.pemnet.com/interactiveSearch.php?FASTACT=ISEARCH_PRODUCT2&FPRODUCTID=849&PAGEID=

However the -6C is not -6CL

According to http://www.aircraftfast.com/LAC832-2F.html, M45938/11-6CL = Part #LAC832-2F

But Penn Engineering specifies LAC-832-2MD
http://select.pemnet.com/interactiveSearch.php?FASTACT=ISEARCH_PRODUCT2&FPRODUCTID=2384&PAGEID=

For contact info
http://www.pemnet.com/contact/index.html

Definitely check with the customer as Q_Goest recommends, and also ask who has supplied such parts in the past.

[nvn]

goldleader: Standards such as the ones you listed in post 1 are common, and correct. You wrote them exactly correctly in post 1 (except for case). Here is what the portions of the numbers you wrote in post 1 mean.

(1) NASM45938/11 means clinch nut, floating, 204 deg C.
(2) -10CL means stainless steel AISI 303 (UNS S30300), self-locking, 0.1900-32 UNF-3B.
(3) -6CL means stainless steel AISI 303 (UNS S30300), self-locking, 0.1640-32 UNC-3B.

If you need to know something else specific about this fastener, you could ask us here. If you need to know everything about it, you could purchase the standard from a standards vendor, unless you can find it for free on-line at places like USA DoD Assist (https://assist.daps.dla.mil/quicksearch/) (?). Keep in mind, in the past, it was named MIL-DTL-45938/11; and then they changed the name to NASM45938/11, without changing anything in the fastener, so that a private company could charge you for something USA taxpayers already paid for (even though NASM45938/11 was approved for unlimited public release by USA DoD).

[goldleader]

look here -


thank you very much!

[goldleader]

Thank you Sir. I cannot contact you now unfortunately. My manager has to ask to his managers who have to consult their highly trained monkeys first... I LOVE THIS PLACE. I will try what I can do anyway

[goldleader]

Thanks a lot! Your help has been precious. Do you also know what method is used to install this fastener? Thank you very much

[nvn]

See the standard I referred you to.

[goldleader]

see the standard i referred you to.

thanx!!!!!