Easy
Less than 15 minutes
This is a genuine Porter Cable replacement part, it is sold individually.
The purpose of the 890725 Retainer is to secure the pins used on the model numbers shown below.
It is advised to check the condition of the retainer often, for the reason the do deteriorate over time and can fall off of the pin they are retaining.
Urethane Retainer 890725
OEM part for: Porter Cable
Part Number: 890725
$4.99
In Stock
Order within the next 13 hours and your part ships today! 
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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 62 machines
Porter Cable
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NS100A Narrow Crown Stapler View Diagrams & Manuals
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NS150 (Type 1) 1 1/2innc Stapler Kit Power Tool View Diagrams & Manuals
NSS150 (Type 1) Super 1.5 Nc Stapler Power Tool View Diagrams & Manuals
US58 (Type 1) Stapler Power Tool View Diagrams & Manuals
US585 (Type 1) Upholstery 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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28
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Good advice, easy fix
I went looking for one part I knew was bad, but the site pointed me to another likely culprit for the symptoms so I got it as well (very inexpensive part). It turned out that part was also shot, so it was good to have gotten both. The repair was quite easy, and I just extended the life of a $120 tool for a few dollars.
Guest -
July 22, 2023
Verified Purchase
Easy repair
Part arrived quickly, my air nailer is working like new again.
Guest -
July 5, 2023
Verified Purchase
Worked well and was correct part
Part was in new condition and received in about 1 week.
Guest -
April 11, 2023
Verified Purchase
theillistration and part numbers made ordering very easy.
I was pleasantly surprised how easy it was to order the part.
i never even considered that i ordered the wrong item
The part is working perfectly.
The finish nail gun was completely useless without this simple replacement piece.
Guest -
April 10, 2023
Verified Purchase
Easy replacement
Arrived earlier than expected, easy installation
Darrell -
January 6, 2023
Verified Purchase
Easy fix with the right parts
Too early to tell
Guest -
December 10, 2022
Verified Purchase
Very easy to use
I tried Amazon , wrong part showed up ( my fault ) Here I put in model etc. The parts showed up promptly ... and were correct.
Guest -
October 30, 2022
Verified Purchase
Great folks and service
Parts re perfect. Service is excellent.
Keith -
October 10, 2022
Verified Purchase
Great service
Great service. Quick shipping. The part was exactly what I needed. I will order from them again.
Guest -
August 28, 2022
Verified Purchase
Easy
What I needed
George -
August 18, 2022
Verified Purchase
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Verified Purchase
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Does this fit my product?Questions & Answers for Urethane Retainer
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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.
Pneumatic nailer intermittent fire, sticking.
Bill - February 28, 2016
👍 36 of 38 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
1-2 hours
Tools Used
Wrench Set, Allen Wrenches, Needlenose Pliers, Air Tool Lubricant.
In addition to a new piston bumper and manifold gasket I installed an O-ring kit. I started with the firing mechanism valve assembly which unscrews from the body using a box wrench. I cleaned the valve and fitted new O-rings the lubricated and reinstalled. When there was still a problem I disassembled further and found that the piston bumper had been dissolved after someone had tried to clean the tool with solvent. I removed the manifold cap, piston and cylinder and flushed the unit with WD-40. I wiped and dried all pieces then lubricated all O-rings and reassembled. The most important thing to remember is to properly reinstall the neoprene band that covers the small holes in the middle of the cylinder. The band acts as a one-way valve allowing the pressure charge to vent into the outer cylinder chamber where it then forces the piston back up completing the firing cycle. Everything else is step by step except for the band since it will slide out of position during disassembly and unless you know where it goes back your tool will fail to cycle. A little study and you can figure it out if you don't know.
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Urethane Piston stop crumbled
Cody - December 30, 2015
👍 17 of 18 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen keys
Super easy, E replacements online video walked me though it. The repair it showed was different than mine, but the disassembly steps showed me how to take apart the gun in order to diagnose the issue.
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Pin and retainer came out of trigger
Robert - February 9, 2016
👍 7 of 8 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, No tools needed
Parts Used
Pushed the pin thru the trigger and housing then pressed the retainer on the pin.
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Piston stop had deteriorated completely and firing piston would not retract.
Edmon - December 29, 2016
👍 5 of 5 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Supplied allen wrench
1. Opened head of nailer with allen wrench.
2. Removed retaining washer complex.
3. Assembled new piston stop and bearing washer (per diagram).
4. Reattached head of nailer and secured with original bolts.
5. Secured trigger pin with urethane retainer.
6. Place oil in air intake and attached air supply to test nailer.
Worked like new.
2. Removed retaining washer complex.
3. Assembled new piston stop and bearing washer (per diagram).
4. Reattached head of nailer and secured with original bolts.
5. Secured trigger pin with urethane retainer.
6. Place oil in air intake and attached air supply to test nailer.
Worked like new.
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Porter Cable finish nailer was missing every other nail, and then every nail. Took it apart and piston bumper was falling apart.
Fred - February 8, 2016
👍 3 of 3 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set
Clean all the pieces out from the broken piston bumper, and clean muffler. Install new bumper, make sure when installing top portion of piston not to dislodge o-ring, I did and it leaked air when I put it back together, took back apart and saw it had pulled out, just take time and align piston when installing, goes in easy and properly. Put back together, and shooting like new. Hope this helps anyone.
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Trigger fell out due to retainer clip being gone
charles - September 7, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
Put the trigger assembly back in and installed the retainer
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Missing O ring and retainer on trigger pin
Will - September 6, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers
Parts Used
Put trigger back together
Pushed E Ring on with pliers
Put retainer on by hand
Pushed E Ring on with pliers
Put retainer on by hand
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Roof Nailer losing air from the top,piston retainer shattered
Al - August 7, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
, Allen wrench
Parts Used
Used parts diagram and instructions take apart tool piece by piece
Install new parts needed and assembled back together.
Used nailer and adjust air pressure until perfect .
Install new parts needed and assembled back together.
Used nailer and adjust air pressure until perfect .
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Pin fell out and trigger fell off during operation. Urethane retainer on pin came off and was lost.
Paul - October 1, 2018
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers
Lined up trigger with pin hole and inserted pin and retainer. eReplacementparts phone operator identified the urethane retainer on list, but it was not shown on the manufacturers schematic nor on my list that came with the tool. Good job by eReplacementparts. Nose cushion wore out and was easy to replace.
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Original pin on my nail gun lost the retainer clip then the pinon the trigger.
Tracy - September 19, 2018
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, No tool required
Parts Used
Simply inserted the new pin and placed the retaining clip on the end.
The biggest challenge was finding a replacement part. Your site made it simple.
The biggest challenge was finding a replacement part. Your site made it simple.
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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.
