Club Homepage Forums Classified Ads Buy & Sell - Everything But Airplanes Window arm roll pins

Well,, I just purchased 100 roll pins for window arm levers,

Part number is NAS561P3-8,, if anyone needs one,, I only need 2 of them,,

I'll buy 2! mine keep working there way out, as part of my preflight I have to push them in with a pair of pliers.

John

John, you and me have the same problem,, I'm tired of having to "push" them back in all the time,, I have this vision,, of them falling out in flight,,

Anyways, I really don't intend selling them,, but you can have 2 of them, I got a steal on the package,, a penny per piece,, but,, a Tim Horton's triple/triple works for me

Anyways,, send me a PM with your mailing address and I'm sure they'll find their way into your window arm,,

If they are working their way out, install the new pins then take a centre punch (automatic or old school) and place two small marks on close to either side of the pin to stake the pin into place. The surrounding metal of the arm should mush over slightly to hold the pin. You could also run some thin lockwire through the centre of the pin and wrap it around the arm to hold the pin in place.

John, That's a good idea to score the pin a bit, to provide grip to the pin.

As far as wiring the thing in,, that would work well also,, might look a bit gaudy mind you but practical,

Typically roll pins are good for a few insertions,, and then should be turfed. I've no idea how many times mine might of been removed and put back in. It's like re-using bolts and or nuts, over and over again. Eventually they've outlived there usefulness and should just be replaced.

Sorry, I don't think I was clear. What you want to do to stake the roll pin is to take a centre punch (I usually use my automatic one) and locate the point of it about 1/8th of an inch from the edge of the hole on the arm and create a small indentation. If done right, the hole be ever so slightly "mashed", so that the arm material can grip the roll pin securely. Same idea for the spherical bearing used in the elevator control bellcrank.

Aww, now I understand. That makes a lot of sense. That'll be the first thing that my pins see,, a punch,, and hey, if I wreck one,, of got a whole bag full to play with.

Thanks John,,

Lionel,

Is it possible for me to get two of them? I would really appreciate it.

Anyone else interested in a few roll pins?

Sure, I'll take 4... 2 for now and 2 for spares!

Speedmaster Signs, Inc.
1132 13th St
Columbus, GA 31901
USA

Thanx, Lionel!