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Hinge Stock - Source for Al hinge for 1/8 pins

Freemasm

Freemasm

Well Known Member
Not a debate on cowling attachment methods.

The associated plans call for the subject materials. The AN and MS specs do not have the equivalent P3 or -3 (or any size) option in the related specs. Does anyone know the source for this? I can get some model specific parts from Vans that I can make work. Three foot long sections sent from Oregon to Florida isn't just potentially expensive, it's also wasteful.

Anyone with any source info, please let me know. Thx.
 
This might do the trick.

www.mcmaster.com

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
www.mcmaster.com www.mcmaster.com

Select 1/8" and whatever length you need.
 
bjdecker said:
This might do the trick.

www.mcmaster.com

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
www.mcmaster.com www.mcmaster.com

Select 1/8" and whatever length you need.
Click to expand...
Thank you. Are you sure or just assuming? It does make a lot of sense from the perspectives:
Knuckle dimension = 1/2
Pin diameter = 1/8
Hinge material = 5052
Vans instructions tell you to discard the original pin (Aluminum) and replace with stainless steel pin stock.

More secondary evidence would be if someone would verify the leak thickness being 0.050"

Thanks again. Hope you're correct
 
I got the stainless 1/8 rod from the local McFadden dale hardware store. It also has a supplies of smaller gauge rods too. You can probably find stores like these in your big cities, or they can order them for you. The only downside is these rods are packaged in large boxes. McFadden dale sell the individual rod from the box

or from Amazon:
 
PhatRV said:
I got the stainless 1/8 rod from the local McFadden dale hardware store. It also has a supplies of smaller gauge rods too. You can probably find stores like these in your big cities, or they can order them for you. The only downside is these rods are packaged in large boxes. McFadden dale sell the individual rod from the box

or from Amazon:
Click to expand...
Thanks. If I finally nail down that these are the Vans supplied parts or equal (sure looking so), I'll just order SS rod stock at the same time. They have it cheap and the real cost in any shipping is in the package length. already determined by the hinge stock length. Thx again.
 
I'm sorry -- I misread your OP. If you want an alternative supplier for hinge stock google up MS20001 (The very good extruded hinge) or the MS20257 (nee AN257 -- rolled aluminum hinge).

For example --

MS-20001 Extruded Aluminum Continuous Hinges l Guden

Hinges to MS20001 military specification. Type 2024-T3511 extruded aluminum hinge stocked in 72.00 inch lengths.
www.guden.com

Continuous Hinges -- MS20257 Military Specification - Guden

Hinges to MS20257 military specification. Stock 72.00 inch lengths in anodized (P) or unanodized aluminum (-), as well as stock in stainless steel (C).
www.guden.com

Wicks Aircraft has been helpful in the past as well...


G/L

B
 
bjdecker said:
I'm sorry -- I misread your OP. If you want an alternative supplier for hinge stock google up MS20001 (The very good extruded hinge) or the MS20257 (nee AN257 -- rolled aluminum hinge).

For example --

MS-20001 Extruded Aluminum Continuous Hinges l Guden

Hinges to MS20001 military specification. Type 2024-T3511 extruded aluminum hinge stocked in 72.00 inch lengths.
www.guden.com

Continuous Hinges -- MS20257 Military Specification - Guden

Hinges to MS20257 military specification. Stock 72.00 inch lengths in anodized (P) or unanodized aluminum (-), as well as stock in stainless steel (C).
www.guden.com

Wicks Aircraft has been helpful in the past as well...


G/L

B
Click to expand...
You read/interpreted it correctly. There is no Mil Spec equivalent for what Vans supplies. I had already looked at the various sites and the spec proper. The Al series jumps over the 1/8" pin in the sizes called out by Vans or so it appears.
 

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Freemasm said:
You read/interpreted it correctly. There is no Mil Spec equivalent for what Vans supplies. I had already looked at the various sites and the spec proper. The Al series jumps over the 1/8" pin in the sizes called out by Vans or so it appears.
Click to expand...
So we're talking about the "big hinge" that Van's spec's for the cowl-to-fuselage and gear leg close outs -- correct?
 
bjdecker said:
Have a look at https://www.guden.com/itemdisplay/continuous-hinges-a-a-55589-a-a-55596#A592A
Click to expand...
Thanks. It's interesting. That site has the AN/MS spec hinges that jump the subject pin diameter as you'd expect. The
"other" spec hinges come in the same material. The supplied pin is also aluminum which Vans has you discard. The relevant styles come in 0.625 knuckle versus 0,500. This could prove an issue rounding the tightest curves of the cowl. Someone was going to verify leak thickness and hopefully knuckle width from a scrap piece of the Vans supplied part. Hopefully this will be telling.

Thanks again
 
Freemasm said:
Thanks. It's interesting. That site has the AN/MS spec hinges that jump the subject pin diameter as you'd expect. The
"other" spec hinges come in the same material. The supplied pin is also aluminum which Vans has you discard. The relevant styles come in 0.625 knuckle versus 0,500. This could prove an issue rounding the tightest curves of the cowl. Someone was going to verify leak thickness and hopefully knuckle width from a scrap piece of the Vans supplied part. Hopefully this will be telling.

Thanks again
Click to expand...
The measurements for the rolled eye 1/8 hinge that Van's supplied are: knuckle 0.5", material thickness .060", width when open 1.5".
Sorry I don't know the source but I suspect it is not "aircraft grade" and therefore cheaper than MS hinge and a reason for supplying it.
I expect it would be quite OK to purchase some equivalent size MS hinge from Aircraft Spruce in a 3 foot length. Shipping cost will possibly be more than the hinge, but that's the way it is! Or maybe a builder near you will have some surplus that was leftover.
 
Thanks to all. Another confirmation if you don't mind as I can't tell from the manuals since Vans part numbers are specified. It's obvious the aluminum pin is replaced with a SS one. It seems from other posts here that the replacement pin is also 090 versus 125.; undersized for the eyelets. Can any of you 4, 6, 7, 8 builders confirm this?

Thanks again
 
For the 1/8" commercial hinges that Van's uses to attach the vertical sides of the lower cowling to the firewall:
  • They come with an aluminum pins that are to be discarded. I measure this pin .124 dia.
  • The Van's pin is part number SSP-120 (stainless steel pin 0.120 dia) and comes in lengths 1', 2', and 3'. The one's I got from Van's many years ago measure .116 dia.
  • I purchased two each 1/8" x 2' pins from McMaster, part number 89535K16. They are spec'd 0.125 +/- .001 and install easily.
 
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Freemasm said:
Thanks to all. Another confirmation if you don't mind as I can't tell from the manuals since Vans part numbers are specified. It's obvious the aluminum pin is replaced with a SS one. It seems from other posts here that the replacement pin is also 090 versus 125.; undersized for the eyelets. Can any of you 4, 6, 7, 8 builders confirm this?

Thanks again
Click to expand...
Yes the replacement pin along the top of the cowl is .090 (mine actually measures .087) and Van's sent non-stainless pin material. It is under-sized so that it can bend around the curves.

The replacement stainless pins from Van's for the vertical sides measures 0.115. Some 0.125 stainless TIG welding rod also fits but it is a little more difficult to insert.
 
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