Easy
Less than 15 minutes
O-rings are designed to contain thousands of pounds of pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness.
There are many causes for O-Ring failure, such as pressure, friction, temperature or chemicals. The most common are:
O-ring 894746
OEM part for: Porter Cable
Part Number: 894746
$4.99
In Stock
Ships within 1 business day 
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 16 machines
Porter Cable
BN125A Brad Nailer View Diagrams & Manuals
BN200A Brad Nailer View Diagrams & Manuals
BN200V12 Type 1 Cordless Brad Nailer View Diagrams & Manuals
BN200V12 Type 2 Cordless Brad Nailer View Diagrams & Manuals
NS100A Narrow Crown Stapler View Diagrams & Manuals
BN138 18 Ga. 1-3/8" Brad Nailer View Diagrams & Manuals
BN200B 18 Ga. 2" Brad Nailer View Diagrams & Manuals
NS150A Type 1 1-1/2" Stapler View Diagrams & Manuals
NS150A Type 2 1-1/2" Stapler View Diagrams & Manuals
NS150B Type 1 18Ga 1/4In Crown Stpl View Diagrams & Manuals
NS100B Type 1 18 Ga. 1" Narrow Crown Stapler View Diagrams & Manuals
BN125A (Type 1) Finish Nailer Power Tool View Diagrams & Manuals
BN138 (Type 1) Finish Nailer Power Tool View Diagrams & Manuals
BN200A (Type 1) Finish Nailer Power Tool View Diagrams & Manuals
BN200B (Type 1) Finish Nailer Power Tool View Diagrams & Manuals
NS100A (Type 1) Stapler Power Tool View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Nailer Parts
- Stapler Parts
Customer Part Reviews ?
Average Rating (out of 5):
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AS described.
Parts came on time. Worked good. Good company to work with. Recommended.
Guest -
August 24, 2020
Verified Purchase
Work 100%
Everityng work out fine thanks
Guest -
April 27, 2020
Verified Purchase
O rings fit good, stapler works fine
O rings came promptly. Good service
Don -
October 8, 2019
Verified Purchase
xie xie
o rings
Fredrik -
September 30, 2019
Verified Purchase
Parts for a pneumatic porter cable stapler.
The parts arrived quickly, they matched the old worn out parts perfectly, and my porter cable air staple gun is working perfectly.
Guest -
August 15, 2019
Verified Purchase
t
t
t -
t days ago
Verified Purchase
eReplacementParts Team
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Questions & Answers ?
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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 passed through the tool without shooting the nail.
Gerald - May 12, 2019
👍 3 of 3 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen key
Parts Used
Removed the 4 screws at the top of the tool and removed the head. Pulled out the piston from the cylinder and replaced the o ring and the piston ring. Reassembled the tool and put a drop of oil in the air inlet and the tool worked as good as new.
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Leaking air through trigger, would not drive nails.
David - August 14, 2023
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
Watched several videos to determine possible cause. Ereplacement parts had the schematic for my nailer, which allowed me to order the o-rings I needed. I ultimately placed 3 orders as I worked through various potential causes for the leaks. The repair boiled down to a small urethane ring in the trigger assembly that had deteriorated.
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Needed lubrication
Jack - October 29, 2021
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench and lubricant
Parts Used
1. Took the nailer apart and removed the piston
2. Tried to install the o-ring in the grove on the piston because that’s what the parts list showed , but after reading more on the symptoms of why it’s not working I lubricated the nail gun really good and reassembled it and it now works great 👍
2. Tried to install the o-ring in the grove on the piston because that’s what the parts list showed , but after reading more on the symptoms of why it’s not working I lubricated the nail gun really good and reassembled it and it now works great 👍
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Porter Cable Brad Nailer
Stephen - March 1, 2021
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
The nailer was not shooting the nails, so I removed the 4 screws securing the top cover of the nailer to expose the piston and removed the "O" ring and split ring and replaced both with the new ones ordered from Replacement Parts. Replaced the top cover and hooked up the unit to my compressor and I was in business again. It was an easy repair and replacement of parts, and not necessary to buy a new nailer. If you have the same problem I did just take your time, pay attention to where the rings were situated as you take down the internals, replace them and you will be good to go.
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Air leaking out
Anthony - July 23, 2020
Tool Type
Nailer
Difficulty
Medium
Time
Less than 15 minutes
Tools Used
Wrench Set, None
Parts Used
Change 0 ring
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Hammer wouldn't return
Michael - October 20, 2019
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Removed the 4 allen screws on the top of the nailer.
Removed the head unit
Removed the hammer assembly
Replaced both O-rings on hammer assembly inner and outer
Replaced outer o- ring on cylinder chamber
Reassembled unit
Removed the head unit
Removed the hammer assembly
Replaced both O-rings on hammer assembly inner and outer
Replaced outer o- ring on cylinder chamber
Reassembled unit
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Nail gun leaked air.
Jack - July 24, 2017
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Hex wrench
Removed the hex screws, removed the remnants of o-ring, installed the new o-ring. No tools needed for the nose cushion.
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Bumper broke
mel - April 28, 2017
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
, Allen wrench
Removed the screws from the top housing and removed it. Removed the driver unit,cylinder and bumper and replaced the o-rings. piston ring and driver guide. Replace all of the parts and oiled the interior of the nail gun, then replaced the top cap.
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Leaked air after shooting one brad
John - April 8, 2017
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Parts Used
Removed the cap
Replaced the o-ring and the piston ring.
No more leaks
Replaced the o-ring and the piston ring.
No more leaks
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Stapler would not fire
Kevin - December 13, 2016
Tool Type
Stapler
Difficulty
Medium
Time
15-30 minutes
Tools Used
, Allen wrench and plumbers grease
Replaced several o-rings and up and running again. The top gasket was in good shape so I just lightly coated it with plumbers grease and all is well. P.S. Also lightly lubed o-rings with same plumbers grease.
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
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.
