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.
Troubleshooting
This part works with the following brands:
Porter Cable
This part works with the following products:
Nailer
Part# 904692 replaces these:
904692,
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★★★★★
★★★★★
Website diagnosed problem for me
Part arrived quickly and in perfect condition
Guest - August 3, 2020
Verified Purchase
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Unscrewed the four screws from the cap
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
1. Removed hex bolts from head
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. Ins
... Read moretalled head hex bolts
8. Oiled and tested tool
9. No air leaks
10. Tool is back in service
Took the nailer all apart and got on ereplacement found the parts needed, ordered them and had them in 3 days and replaced the bad parts and the stapler works like new now.
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 th
... Read moreem
Removed all of the internal parts. Salvaged usable gaskets and rings. Checked everything for wear and then replaced the cylinder in the casing. Put the cover back in place and I was back in business.
The parts were exactly what I needed.
By the way, thank you YouTube.
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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.
Took nail guns apart referred to Schematics and found issues with O-rings and loose seals. Thank you for detailed parts list and visual of those parts helped immensely. Thankfully I diagnosed the problems correctly and your parts worked great.
I\'ve had these nail guns for approximately 8 years with moderate use. I referenced DIY\'
... Read mores and YouTube. Be Good or Be Good At It.
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Stock Status
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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