Inspection Hole Plugs (Plug Buttons) NAS 451
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
- rydfly
- Posts: 148
- Joined: Mon Aug 17, 2009 2:37 am
Inspection Hole Plugs (Plug Buttons) NAS 451
So I've lost one of these under-wing inspection hole plugs and am having difficulty finding the replacement part. Can anyone assist? I'm looking in my illustrated parts guide, but can't determine what the part number is (or if it's even called out). I've had 2 A&P's tell me off-the-cuff to just pick one up at the local hardware store (I even looked, and can't find an exact replacement).
I've attached a couple pictures, one with the plug and the other without for reference.
Thanks!
-Kennet
I've attached a couple pictures, one with the plug and the other without for reference.
Thanks!
-Kennet
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1953 C170B - N170RP S/N 25865
- counsellj
- Posts: 428
- Joined: Sat Apr 30, 2005 2:58 pm
Re: Inspection Hole Plugs
Kennett
I used a 5/8" plug from my local hardware store. Home Depot and several local stores all carried them. To ensure a tight fit, either bend the tabs out slightly or run a piece of masking tape around the taps to increase the tension just enough.
I used a 5/8" plug from my local hardware store. Home Depot and several local stores all carried them. To ensure a tight fit, either bend the tabs out slightly or run a piece of masking tape around the taps to increase the tension just enough.
-
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Re: Inspection Hole Plugs
Wilkie buttons.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
- GAHorn
- Posts: 21283
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Inspection Hole Plugs
"Wilkie Button" refers to the shape of "plug buttons" which Wendell Wilkie introduced to his campaign for President.
What you actually want is a "Plug Button" If you don't mind buying more than you need:
http://www.imperialinc.com/grp410.shtml
Otherwise, they can usually be found at Home Depot, ACE Hardware, and Tractor Supply. Some electrical supply houses also sell them as hole-plugs for electrical outlet or junction boxes.
What you actually want is a "Plug Button" If you don't mind buying more than you need:
http://www.imperialinc.com/grp410.shtml
Otherwise, they can usually be found at Home Depot, ACE Hardware, and Tractor Supply. Some electrical supply houses also sell them as hole-plugs for electrical outlet or junction boxes.
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'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

- Bruce Fenstermacher
- Posts: 10415
- Joined: Tue Apr 23, 2002 11:24 am
Re: Inspection Hole Plugs
Last I saw them was at Lowes in the Hillman Hardware Section. ACE and Home Depot carry Hillman as well but all the Lowes I've been in have the full Hillman compliment so your hunting might be more successful there than at the other places.
Now you've have a couple of non-A&Ps tell you to get them at the local "parts" place.
Now you've have a couple of non-A&Ps tell you to get them at the local "parts" place.

CAUTION - My forum posts may be worth what you paid for them!
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
- Brad Brady
- Posts: 745
- Joined: Fri Feb 29, 2008 2:54 am
Re: Inspection Hole Plugs
Well I call them Wilkie buttons. I'll also ketch some grief over using plastic buttons form Lawson. Usually Lawson= expensive. I keep a box of 1/2, 5/8, 3/4, 7/8 and 1" around the shop. There not to badly priced. Although I have had these around several years.
They can be dyed, regular paint will usually flake off. I usually just leave them black.(obviously) I just like the low profile as opposed to the regular (wilkie buttons)


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- GAHorn
- Posts: 21283
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Inspection Hole Plugs
That's what I call them too...but if you search for that term you'll not likely find what you want. It was years before I found out the origin of the term. (My Dad was a politically-interested person and had a very large collection of campaign buttons until some thieves broke into his home and took things of such diversity one could not determine what they were actually after.Brad Brady wrote:Well I call them Wilkie buttons. ...
(A year later my Mom was called to identify someone in a line-up and she tried very hard to convince the detective that since she was not home ...in fact not even in town... the day the break-in occured there was absolutely NO WAY she would be able to identify the thief. The detective was undeterred and insisted she come down anyway to view the lineup.
When she did, she was astonished to see six men lined up on a viewing stage with no apparent similarity other than they were all somewhat dishevelled except one... and she noticed he was wearing a very large, cheap, imitation-ruby ring... the one she'd bought in Mexico years before while on vacation.

The idiot had actually worn a piece of costume jewelry he'd stolen from her dresser to the line-up!

A large portion of the rest of her costume jewelry was found in the trunk of his car. Two of the objects therein had her initials engraved and he even had the name-bracelet give her by one of her students.

'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

- Brad Brady
- Posts: 745
- Joined: Fri Feb 29, 2008 2:54 am
Re: Inspection Hole Plugs
George,
That last post was hilarious. It just goes to prove that most thieves aren't geniuses.....Brad
That last post was hilarious. It just goes to prove that most thieves aren't geniuses.....Brad
- n2582d
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- GAHorn
- Posts: 21283
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Inspection Hole Plugs (Plug Buttons) NAS 451
YOU the MAN, Gary! (for the life of me I could not find the NAS spec!) (NAS451)
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

- n2582d
- Posts: 3007
- Joined: Mon Apr 29, 2002 4:58 am
Re: Inspection Hole Plugs (Plug Buttons) NAS 451
Huh? I was looking at the rubber grommet blanking plugs below the NAS451s.gahorn wrote:YOU the MAN, Gary! (for the life of me I could not find the NAS spec!) (NAS451)

Gary
- cessna170bdriver
- Posts: 4112
- Joined: Mon Apr 22, 2002 5:13 pm
Re: Inspection Hole Plugs
George would NEVER admit to having ANYTHING on his airplane named for a Republican!gahorn wrote:"Wilkie Button" refers to the shape of "plug buttons" which Wendell Wilkie introduced to his campaign for President.
What you actually want is a "Plug Button" If you don't mind buying more than you need:
http://www.imperialinc.com/grp410.shtml
Otherwise, they can usually be found at Home Depot, ACE Hardware, and Tractor Supply. Some electrical supply houses also sell them as hole-plugs for electrical outlet or junction boxes.

Miles
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
- rydfly
- Posts: 148
- Joined: Mon Aug 17, 2009 2:37 am
Re: Inspection Hole Plugs (Plug Buttons) NAS 451
Thanks for all the prompt responses everyone. I guess I'll go back to Lowes and search more diligently. At least this time I've got a little more direction.
-Kennet
-Kennet
1953 C170B - N170RP S/N 25865
- W.J.Langholz
- Posts: 1068
- Joined: Sat Jul 26, 2008 1:56 pm
Re: Inspection Hole Plugs (Plug Buttons) NAS 451
Miles Miles Miles.....You just got to sit on the edge. Do you think Wilkie and Plug were related.....maybe to the Button Button family i think they came from a red state too
W.



W.

Loyalty above all else except honor.
1942 Stearman 450
1946 Super Champ 7AC
- GAHorn
- Posts: 21283
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Inspection Hole Plugs (Plug Buttons) NAS 451
Perhaps, Dubya,... you were thinking of the actor, Red Buttons?W.J.Langholz wrote:.....maybe to the Button Button family i think they came from a red state too![]()
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W.

His first film debut, "The Admiral had a Wife" , was a film set in Pearl Harbor, and was set to open Dec. 8, 1941. Of course it didn't since the Japanese attacked the day-before. He always joked that the real reason the Japanese attacked America was to keep him off Broadway!

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'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

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