Easy
15-30 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 894748
OEM part for: Porter Cable
Part Number: 894748
$3.99
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 10 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
NS150A Type 1 1-1/2" Stapler View Diagrams & Manuals
NS150A Type 2 1-1/2" Stapler View Diagrams & Manuals
BN125A (Type 1) Finish Nailer Power Tool View Diagrams & Manuals
BN200A (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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Part Research and Providing Item
The quick response was outstanding and great ability to find the needed part.
Charles -
November 13, 2021
Verified Purchase
it fit
arrived promptly.
Guest -
June 28, 2021
Verified Purchase
Easy repir
in good condition fit perfectly for the tool
Guest -
April 23, 2020
Verified Purchase
The tools is working properly now.
The parts were correct and the YouTube video I found by another man fixing his Porter Cable BN125A did the trick. Thanks.
Guest -
March 11, 2020
Verified Purchase
O-Rings for my Brad Nailer
parts were reasonably priced, quick delivery and best of all, my Porter Cable Brad Nailer no longer leaks air!! Thank you for having the right parts, right price.
Guest -
October 2, 2019
Verified Purchase
Just what I needed to repair my brad nailer! Fast shipping time
Just what I needed - fast shipping
Guest -
September 20, 2019
Verified Purchase
Sloppy fit.
Seems to move around in the groove and not protrude above the surface as much as the old one, so I did not use it.
Guest -
July 18, 2019
Verified Purchase
eReplacementParts Team
Hi Keith,
Thank you for your review. Please accept our apologies that the part you received is not fitting correctly. We have contacted you privately regarding this situation.
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.
Leaking air.
Bill - December 31, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Wrench Set
Parts Used
Once I ordered correct part, the repair was straight forward. Took top off and there was broken O-ring, replaced. Reassembled and tried out. Works great. Hardest part was determining the correct o-ring to order.
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Brad nailer leaked air from top when connected to air supply
Bruce - December 18, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
Removed 4 allen screws from top cover plate. Replaced neoprene "o" ring in cap. Easiest
thing I've ever done. Works great now. I ordered other parts I did not need. If your gun leaks from top, take off the cap and inspect "O" ring. If it is split, just replace it.
thing I've ever done. Works great now. I ordered other parts I did not need. If your gun leaks from top, take off the cap and inspect "O" ring. If it is split, just replace it.
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Stapler wouldn't drive staple flush.
Larry - June 26, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set, Allen wrench
Parts Used
1. Removed the top of stapler housing.
2. Removed the deteriorated o-ring.
3. Oiled the new ring and installed.
4. Replaced the top of the nailer.
2. Removed the deteriorated o-ring.
3. Oiled the new ring and installed.
4. Replaced the top of the nailer.
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Leaking air
Jim - June 3, 2023
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Allen wrench
Parts Used
Removed top of air nailer and replaced o - ring. Replaced top. Easy and straight forward
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Housing was broken and gasket was damaged
Mark - April 8, 2021
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Power Drill
1. Removed housing cap
2. Then pull off seal/ o ring and replace with new one and attached to housing
3. Installed gasket and put housing back on
4. Note used a little flat head screw to remove o ring.
5. Test let’s it and all good to go. No air leaks
2. Then pull off seal/ o ring and replace with new one and attached to housing
3. Installed gasket and put housing back on
4. Note used a little flat head screw to remove o ring.
5. Test let’s it and all good to go. No air leaks
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Blowing air out of the top
Leonard - October 4, 2020
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
Parts Used
Took the top off
Replaced o ring
Reinstalled top
Replaced o ring
Reinstalled top
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Air escaping from top
Roy - October 5, 2020
1. Removed top.
2. Removed broken o ring.
3. Installed new o ring.
4. Replaced top.
2. Removed broken o ring.
3. Installed new o ring.
4. Replaced top.
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O-Ring finally died, so had to install newe one
Thomas - August 8, 2020
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
1. Removed exhaust cap - 4 screws
2. Removed old broken o-ring
3. Installed new o-ring
4. Re-installed exhaust cap - 4 Screws
5. Works great!
2. Removed old broken o-ring
3. Installed new o-ring
4. Re-installed exhaust cap - 4 Screws
5. Works great!
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seal broke
LeRoy - October 9, 2019
Tool Type
Stapler
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
remove 4 screws from cap, remove old broken seal from cap, replace with new.
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Porter Cable BN200A Air Nailer, would not fire - massive internal air leak
K - September 7, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Removal of the cap (4 internal hex cap screws) revealed a broken O-ring. There was a gasket under the cap. I ordered the most likely parts to wear or leak. No other tools were required to disassemble enough to replace the piston seal, and another O-ring in the cap. I lubricated the O-rings and piston seal with Vaseline. After reassembly, the nailer performed like new.
Big endorsement for ereplacementparts.com. They had the parts to keep this tool in operation.
Big endorsement for ereplacementparts.com. They had the parts to keep this tool in operation.
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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.
