Easy
15-30 minutes
This replacement o-ring is a genuine item that is supplied by original equipment manufacturer for Porter Cable nailers. The purpose of this o-ring is to provide an air-tight seal for the head valve. Over time rubber material may shrink, become brittle and crack eventually requiring replacement. Please note this high quality item is sold individually.
O-ring 886085
OEM part for: Porter Cable
Part Number: 886085
$4.99
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 8 machines
Porter Cable
RN175 Type 1 Roofing Nailer View Diagrams & Manuals
RN175 Type 2 Roofing Nailer View Diagrams & Manuals
FN250A Finish Nailer View Diagrams & Manuals
COIL200 2" Coil Nailer View Diagrams & Manuals
NSS150 Super Narrow Crown 18 Gauge Stapler View Diagrams & Manuals
COIL200 (Type 1) 2in Coil Nailer Kit Power Tool View Diagrams & Manuals
FN250A (Type 1) 2 1/2in Finish Nailer Power Tool View Diagrams & Manuals
NSS150 (Type 1) Super 1.5 Nc Stapler Power Tool View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Nailer Parts
- Stapler Parts
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The parts I ordered were correct and worked well.
It is nice to have a good resource for parts. I was able to rebuild my finish nail gun with the parts I ordered. All of them fit and worked well.
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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.
Air leak/ nailer would not function
Tony - June 23, 2021
simply took the nailer apart, replaced the O ring. Put it back together, tried it and worked like a charm.
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Nailer won't fire, only leaked air while the trigger was depressed in the trigger area
Michael - February 16, 2019
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Wrench Set, Dental Pick
Disassembled the trigger and then removed the trigger valve from the body of the gun using a socket. I replaced all of the O-rings in the trigger area and lubricated them with the oil that comes with the gun. I then reassembled the valve and screwed it back into the gun body. I reassembled the trigger making sure that the safety worked as it is designed to. The gun worked properly after the repair and continues to at this point. I am satisfied that the O-rings were the cause of the problem.
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Leaking air at the top of the nailer.
Frederick - April 24, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
1. Removed the top of the nailer.
2. Removed the broken piston stop.
3. Put in all new o-rings.
4. Reassembled the nailer.
2. Removed the broken piston stop.
3. Put in all new o-rings.
4. Reassembled the nailer.
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Failed to drive the nails
Douglas - February 22, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Removed the cylinder cap assembly to access the internal parts. Found that the piston stop was destroyed. Cleaned the cylinder and all O-rings. Replaced the piston stop part # 886113. Cleaned and lubricated the O-rings. Reassembled the unit and tested. Nails were driven in normally. Very helpful that a diagram was available to show how this unit was assembled on this web site.
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Leaking air and not firing
Johann - September 9, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Removed the four allen head screws from the cylinder cap and removed it
Removed the cylinder and cleaned the inside of the gun
Installed all of the o-rings, piston stop and gasket
Oiled the insides of the gun
Replaced the cylinder cap
Removed the cylinder and cleaned the inside of the gun
Installed all of the o-rings, piston stop and gasket
Oiled the insides of the gun
Replaced the cylinder cap
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O-rings were bad
AMBROSE - August 7, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Allen wrench
Parts Used
Removed the four screws from the cylinder head and removed it
Removed and replaced the worn o-rings
Cleaned and oiled the inside of the gun
Installed the cylinder head
Removed and replaced the worn o-rings
Cleaned and oiled the inside of the gun
Installed the cylinder head
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Piston stop broke
Robert - February 23, 2017
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver
Took off the top, put in the new stop, lubed and replaced the top.
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Driver would not return. Upon examination, the plastic stop had completely deteriorated.
William - October 28, 2016
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Allen wrench
Parts Used
1) Remove from air source
2) Unscrew four allen bolts on top of nailer
3) Remove top and internal parts that come out when top is removed. Note the order and orientation of the parts.
4) Lube and replace O rings
5) Reassemble in reverse order.
6) Evenly tighten allen screws
7) Reconnect air and check operation at minimum air pressure prescribed on feeder
8) Get back to work
2) Unscrew four allen bolts on top of nailer
3) Remove top and internal parts that come out when top is removed. Note the order and orientation of the parts.
4) Lube and replace O rings
5) Reassemble in reverse order.
6) Evenly tighten allen screws
7) Reconnect air and check operation at minimum air pressure prescribed on feeder
8) Get back to work
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Thanks for voting and helping fellow customers!
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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.
