This replacement o-ring is an authentic OEM sourced part that is specially designed for Porter Cable finishing nailers. The purpose of this o-ring is to provide and air tight seal between the piston and the cylinder walls. Please note it is made from durable rubber material and it is sold individually. To complete this repair you will need a hex key also known as an allen wrench.
O-ring (31 X 2 (2031 904692
OEM part for: Porter Cable
Part Number: 904692
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Frequently Purchased Together ?
Compatibility
This part will fit the following 3 machines
Porter Cable
This item works with the following types of products:
- Nailer Parts
Customer Part Reviews ?
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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
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Removed the old piston ring and o-ring
Installed new the o-ring and piston ring
Cleaned and oiled the inside parts
Replaced the cap
Internal parts broke
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Everything went smooth from finding the parts, too ordering the parts, to shipping and assembling the parts. Will use this company again and highly recommend them
Nailer: broken cylinder.
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Allen
The parts were exactly what I needed.
By the way, thank you YouTube.
Two nail guns porter cable brad nailer BN125A and FN250B 18g finish nailer, seal head valve air leaking on BN and FN O-ring dry rot.
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Pliers, Allen tool
I've had these nail guns for approximately 8 years with moderate use. I referenced DIY's and YouTube. Be Good or Be Good At It.
Air leak in piston compression/stop head assembly
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Allen wrench
2. Dissembled piston stop and compression assembly
3. Laid all components in order on work bench
4. Utilized individual parts breakdown diagram to validate component assembly
5. Removed and replaced damaged and worn parts
6. Re-assembled components in correct order
7. Installed head hex bolts
8. Oiled and tested tool
9. No air leaks
10. Tool is back in service
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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.
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