The Most Comprehensive Free Online Reference for Packard Owners
Become a member of Packard Motor Car Information, right now! (it's free)
Login
Username:

Password:

remember me

Lost Password?

Register now!
FAQ's
Main Menu
Recent Forum Topics
Who's Online
46 user(s) are online (28 user(s) are browsing Packard Forums)

Members: 1
Guests: 45

Jeremy B, more...





5/16-24 Flexible Locknuts
Home away from home
Joined:
2014/7/15 11:30
From Terrebonne, OR
Posts: 1342
Iím looking for what are apparently called flexible locknuts but Iím not having much luck. That is, I can find them in abundance but so far every one Iíve located is turned down to round on the slotted end rather than having the hex. Does anyone know of a source for new ones? These are Packard part number G451006 and are for my 1951 Henney-Packard but are also used in many other Packard applications.

This isnít a very good photo but it shows, just barely, the fine slots that are cut across it.

Attach file:



jpeg  7846179E-5D46-4B31-B613-7E5A67349D91.jpeg (358.32 KB)
60923_5dc49fc23556c.jpeg 1555X1222 px

Posted on: 11/7 14:51:52
_________________
All generalities are false.

Packard / IMPERIAL page
CA DMV Licensed Vehicle VIN Verification
Transfer the post to other applications Transfer


Re: 5/16-24 Flexible Locknuts
Forum Ambassador
Joined:
2007/4/20 17:54
From Fresno CA
Posts: 15365
Can't tell how deep the notches are but if they are deep for a cotter pin to lock, check out McMaster-Carr and their selection of castellated nuts. If the notches are shallow or very thin check out AMK products. Look in their bulk catalog on page 47. https://www.amkproducts.com/wp-content ... lkFastener/BULK_39-54.pdf

Posted on: 11/7 17:10:09
_________________
Howard
Transfer the post to other applications Transfer


Re: 5/16-24 Flexible Locknuts
Home away from home
Joined:
2014/7/15 11:30
From Terrebonne, OR
Posts: 1342
These are not castellated nuts designed for cotter keys. The slots are very narrow allowing the nut to be pre-squeezed (hence the flex in their name) at the outer side which makes it vibration resistant.

Those on AMK Products are very similar but extremely expensive! I could probably have them made for less than that but itís place start so thank you! Those never came up in any of my searches.

These have many Packard applications including inside the Ultramatic but in my case they attach the driveshaft supports which is included in the last two entries in the capture below from the parts book:

Attach file:



jpeg  13D865D7-9E2C-4BEC-A0DC-2BD4666700B5.jpeg (290.19 KB)
60923_5dc4c38734e0d.jpeg 1295X1391 px

Posted on: 11/7 17:23:19
_________________
All generalities are false.

Packard / IMPERIAL page
CA DMV Licensed Vehicle VIN Verification
Transfer the post to other applications Transfer


Re: 5/16-24 Flexible Locknuts
Home away from home
Joined:
2014/7/15 11:30
From Terrebonne, OR
Posts: 1342
From what I can gather based on the link that Howard so kindly provided, these are called Marsden Nuts, a term Iíve never heard before now and should be commonly available if I can find someone who doesnít have huge minimum orders,

Posted on: 11/7 18:01:45
_________________
All generalities are false.

Packard / IMPERIAL page
CA DMV Licensed Vehicle VIN Verification
Transfer the post to other applications Transfer


Re: 5/16-24 Flexible Locknuts
Forum Ambassador
Joined:
2006/5/15 20:07
From Irwin, Pa
Posts: 3481
Marsden nuts were supposedly invented by a Packard employee and they gripped the bolt so tight that they wouldn't loosen. It has been a long time since I read about them.

Posted on: 11/8 1:45:32
_________________
"The difference between genius and stupidity is that genius has its limits" - Albert Einstein
YFAM, Randy Berger
Packard 400 (Best Other)
Packard Caribbean
Caribbean restoration
1956 Patrician
Transfer the post to other applications Transfer


Re: 5/16-24 Flexible Locknuts
Forum Ambassador
Joined:
2007/3/14 16:01
From New Jersey
Posts: 15672
Randy, perhaps you're thinking of Marsden Ware, a fairly prolific engineer for Packard with several patents to his credit. Here's a page from an article I published many moons ago about Packard's inventors and inventions, on this page Ware's has to do with valve rotation.

Attach file:



jpg  Pg 11.jpg (484.35 KB)
177_5dc583d3e5e0f.jpg 1615X2103 px

Posted on: 11/8 7:01:50
Transfer the post to other applications Transfer


Re: 5/16-24 Flexible Locknuts
Forum Ambassador
Joined:
2006/5/15 20:07
From Irwin, Pa
Posts: 3481
Thanks for the clarification Dave. That is exactly the name I remember - (or didn't).

Posted on: 11/8 7:20:56
_________________
"The difference between genius and stupidity is that genius has its limits" - Albert Einstein
YFAM, Randy Berger
Packard 400 (Best Other)
Packard Caribbean
Caribbean restoration
1956 Patrician
Transfer the post to other applications Transfer


Re: 5/16-24 Flexible Locknuts
Home away from home
Joined:
2014/7/15 11:30
From Terrebonne, OR
Posts: 1342
Fascinating! I had no idea that theyíd been invented by a Packard engineer which makes me all the more keen to find them rather than using a plain nut and lockwasher.

Knowing what theyíre called, Iíve found quite a few but finding some actually in stock and for sale has been another problem. On the link that Howard provided, they were an outrageous 3 for $6.00 for a Pontiac water pump application and another fastener site that lists them for 44 cents but has none in stock said that they can get them for $3.45 each!

Attach file:



jpeg  637F479B-12B3-4099-BFD4-F7CC7085E8C9.jpeg (84.90 KB)
60923_5dc5f5ea356ab.jpeg 974X801 px

Posted on: 11/8 15:10:34
_________________
All generalities are false.

Packard / IMPERIAL page
CA DMV Licensed Vehicle VIN Verification
Transfer the post to other applications Transfer







[Advanced Search]


Search
Recent Photos
Random Photo
1955 Patrician
Helping Out
PackardInfo is supported and funded by user donations. If you would to help out by either donating content, or funds to help with the upkeep and hosting of this site please EMAIL ME or click on the donate button.