Easy
15-30 minutes
This is an OEM replacement part designed to fit Air Compressors. This nut is for the tube as it enters the head. It is made out of Metal and it is Sold Individually. To replace this item you would need a Wrench.
Hex Nut AC-0780
OEM part for: Porter Cable, DeWALT, DeVilbiss, Black and Decker, Bostitch
Part Number: AC-0780
$3.99
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 56 machines
Porter Cable
CPFC2TV3520W Type 0 3.5 HP 20 Gallon Compressor View Diagrams & Manuals
CPFC2TV3520W Type 1 3.5 HP 20 Gallon Compressor View Diagrams & Manuals
CPFC2TV3520W Type 2 3.5 HP 20 Gallon Compressor View Diagrams & Manuals
CPFC2TV3525VP Type 0 25 Gallon Vertical Air Compressor View Diagrams & Manuals
CPFC2TV3525VP Type 1 25 Gallon Vertical Air Compressor View Diagrams & Manuals
CPFC2TV3525VP Type 2 25 Gallon Vertical Air Compressor View Diagrams & Manuals
CPFC2TV3525VP (Type 3) A 3.5hp 25g Vp Tv 2stg 12 Power Tool View Diagrams & Manuals
DeWALT
D55167 Type 1 Compressor View Diagrams & Manuals
D55168 Type 1 Compressor View Diagrams & Manuals
D55146 Type 1 Compressor View Diagrams & Manuals
D55168 Type 2 200PSI, 15Gal., 120V Electric Compressor View Diagrams & Manuals
D55167 Type 2 200PSI, 15Gal., 120V Electric Compressor View Diagrams & Manuals
D55146 Type 2 4.5 gallon, 200 PSI Hand Carry Compressor View Diagrams & Manuals
D55171 Type 1 1.5HP Compressor View Diagrams & Manuals
D55371 Type 1 1.5 HP Compressor View Diagrams & Manuals
D55146 Type 3 Compressor View Diagrams & Manuals
D55167 Type 3 Electric Compressor View Diagrams & Manuals
D55168 Type 3 Electric Compressor View Diagrams & Manuals
D55171 Type 2 1.5HP Compressor View Diagrams & Manuals
D55371 Type 2 1.5HP Compressor View Diagrams & Manuals
D55149 Type 4 Compressor View Diagrams & Manuals
D55168 Type 4 1.8HP 15G Compressor View Diagrams & Manuals
D55168 Type 5 1.8HP 15G Compressor View Diagrams & Manuals
D55146 Type 4 Compressor View Diagrams & Manuals
D55146 (Type 1) Compressor Power Tool View Diagrams & Manuals
D55146 (Type 5) Compressor Power Tool View Diagrams & Manuals
D55146 (Type 7) Compressor Power Tool View Diagrams & Manuals
D55146 (Type 8) Compressor Power Tool View Diagrams & Manuals
D55167 (Type 4) Workshop Compressor Power Tool View Diagrams & Manuals
D55167 (Type 5) Workshop Compressor Power Tool View Diagrams & Manuals
D55167 (Type 6) Workshop Compressor Power Tool View Diagrams & Manuals
D55168 (Type 6) Compressor Power Tool View Diagrams & Manuals
D55168 (Type 7) Compressor Power Tool View Diagrams & Manuals
D55168 (Type 8) Compressor Power Tool View Diagrams & Manuals
D55168 (Type 9) Compressor Power Tool View Diagrams & Manuals
DeVilbiss
1WC94 Type 0 Construction Compressor View Diagrams & Manuals
1WC94 Type 1 Construction Compressor View Diagrams & Manuals
1WC95 Type 2 Workshop/Auto Compressor View Diagrams & Manuals
Black and Decker
919-16561 Type 0 7.0 Horse Power 60 Gallon Compressor View Diagrams & Manuals
919-16561 Type 1 7.0 Horse Power 60 Gallon Compressor View Diagrams & Manuals
919-16561 Type 2 7.0 Horse Power 60 Gallon Compressor View Diagrams & Manuals
919-16561 Type 3 7.0 Horse Power 60 Gallon Compressor View Diagrams & Manuals
919-16670 Type 0 3.5 Horse Power 20 Gallon Compressor View Diagrams & Manuals
919-16670 Type 1 3.5 Horse Power 20 Gallon Compressor View Diagrams & Manuals
919-16760 Type 0 Compressor View Diagrams & Manuals
919-16761 Type 0 Compressor View Diagrams & Manuals
919-16762 Type 0 Compressor View Diagrams & Manuals
919-16763 Type 0 Compressor View Diagrams & Manuals
919-16778 Type 3 3.5 Horse Power 25 Gallon Compressor View Diagrams & Manuals
919-16778 Type 4 3.5 Horse Power 25 Gallon Compressor View Diagrams & Manuals
919-72550 Type 0 3.5 Horse Power 25 Gallon Compressor View Diagrams & Manuals
919-72550 Type 1 3.5 Horse Power 25 Gallon Compressor View Diagrams & Manuals
919-72550 Type 2 3.5 Horse Power 25 Gallon Compressor View Diagrams & Manuals
919-72550 Type 3 3.5 Horse Power 25 Gallon Compressor View Diagrams & Manuals
Bostitch
CAP1615-OF (Type 0) C 15G Vp Ehp Of 200Psi B View Diagrams & Manuals
CAP1645-OF (Type 1) C 4.5G Jb Ehp Of 200Psi B View Diagrams & Manuals
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This item works with the following types of products:
- Compressor Parts
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great parts
great service and quick delivery
Guest -
June 29, 2023
Verified Purchase
oem part
fast shiping
Guest -
December 7, 2021
Verified Purchase
Easy fix
The parts that I needed were a perfect fit. It made for an easy repair and saved me alot of money by not having to replace the compressor. Customer service was very friendly and helpful.
Guest -
July 26, 2021
Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Inlet tube was cracked
Joe - March 3, 2023
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set, Adjustable Wrench
Removed plastic casing took off brass nuts installed new tube note of caution I planned on reusing the existing brass nut, o ring and compression nut the brass nut and o ring can be reised but you will have to get a new compression nut with collar once tightened it can't be reused and these fittings do not come with the new inlet tube.
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The outlet tube was busted, cracked
Robert - June 5, 2022
Tool Type
Compressor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set
Had to remove the top plate which holds the manifold, the part that has the gauges and hose outlets on it. Then I had to remove the outlet tube using a 14 mm wrench. I had to put on the o-ring and nuts making sure they go in the right direction, the compression fitting has to go on a certain way. I then tightened the tube down. Replaced manifold and replaced the top plate. I did some other things like checked the regulator. Made sure the cutoff was working right.
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Broken outlet air tube
joe - May 27, 2022
Tool Type
Compressor
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Wrench Set, Torx driver
Remove both Wheels to gain access to the shroud around the compressor once both shroud halfs are off the air outlet tube nuts are visible loosen nuts remove tube take notice where the o-ring is located.
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Compressor wouldn't hold pressure.
Craig - February 26, 2022
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set
1. Replaced check valve (use red loctite)
2. Replace tube with both nuts (compression fitting is hard to reuse)
3. Let sit overnite then start
2. Replace tube with both nuts (compression fitting is hard to reuse)
3. Let sit overnite then start
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Outlet tube broke when the compressor was dropped off a truck.
Jim - November 16, 2021
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set
Removed the plastic housing. Outlet tube was readily accessible. Unscrewed the nuts that attached the tube to the compression unit. Installed new tube. Easy. Cost me about $30 to repair a $350 compressor.
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would not build pressure, bad o-ring and bent tube
JIM - September 16, 2020
Tool Type
Compressor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench
Removed the tube assembly, extracted damaged o-ring from exhaust port. Installed o-ring onto the tube, installed both the hex and compression nuts; tightened evenly. The tested operation. Completed repair.
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broke outlet tube
Todd - February 23, 2019
Tool Type
Compressor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Adjustable Wrench, star drive screwdrivers
Replaced tube and nuts and o ring. Unit runs and performs well now!
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Tube broke.
Kathi - February 5, 2018
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set
Removed the existing assembly and reinstalled with the new.
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I had to order a second set of parts due to the angle tube was wrong on the first one. While trying to make it work I messed it up.
Jonathon - December 6, 2017
Tool Type
Compressor
Difficulty
Medium
Time
More than 2 hours
Tools Used
Adjustable Wrench
1. Remove compressor housing
2. Unscrew the nuts and remove outlet tube
3, Check new outlet tube to make sure angle is correct
4. Install O-Ring and nuts
5. Insert outlet tube with nuts and hand tighten nuts
6. Tighten nut on compressor and then tank nut
7. Turn on and spray connection with soapy water
8. Replace housing
2. Unscrew the nuts and remove outlet tube
3, Check new outlet tube to make sure angle is correct
4. Install O-Ring and nuts
5. Insert outlet tube with nuts and hand tighten nuts
6. Tighten nut on compressor and then tank nut
7. Turn on and spray connection with soapy water
8. Replace housing
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Outlet tube was split.
Stephen - November 9, 2017
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Power Drill, Wrench Set
1. Removed outer shroud.
2. Removed outlet tube
3. Installed new outlet tube with o-ring, nut and assembly nut sleeve
4. Installed outer shroud
2. Removed outlet tube
3. Installed new outlet tube with o-ring, nut and assembly nut sleeve
4. Installed outer shroud
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Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
