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: • <u>Extrusion and Nibbling</u> • O-ring has ragged, tattered edges. These are commonly caused by pressure spikes which shear off tiny "bites" from the o-ring, or caused by clearance gaps. • <u>Abrasion</u> • One or both sides of the o-ring appear rough and slightly flattened. Commonly caused by a contact surface that is too rough, contains grit or is too smooth to allow lubrication. • <u>Over Compression </u> • O-ring is flattened on both sides and may have a "ring" split along its length. Commonly caused by excessive pressure or heat. • <u>Heat Hardening</u> • O-ring has a pitted or cracked surface, and often is flattened on both sides. Caused by temperature exceeding o-ring capacity. • <u>Weather/Ozone Cracking</u> • O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching causes similar cracking.
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★★★★★
★★★★★
Perfect fit!
I've had this nail gun for 10 years now, it started leaking a lot of air so i stopped using it... sat in the case for close to 2 years, I didn't think I could find parts for it, well I was wrong. eReplacement parts had it, and it works/ fits perfect. Now I can start using it again
Jay - May 6, 2019
Verified Purchase
★★★★★
★★★★★
krr's bottom line
looks to be the right parts.
Guest - May 12, 2019
Verified Purchase
★★★★★
★★★★★
Maga
I used this particular one o ring for my brad nailer and it seems to be doing good thanks
Andrew - May 28, 2019
Verified Purchase
★★★★★
★★★★★
Porter Cable
Quality part, fast shipping, will buy here again
Guest - June 4, 2019
Verified Purchase
★★★★★
★★★★★
Got me back to work
Just like new!
Tim - June 14, 2019
Verified Purchase
★★★★★
★★★★★
Fast Shipping
The right part shipped in a timely manner as usual. Great Service! Thanks
THOMAS R - August 2, 2019
Verified Purchase
★★★★★
★★★★★
Replacememt part was correct for the repair
Part arrived on time and fit perfectly to put the tool back in action
Guest - August 5, 2019
Verified Purchase
★★★★★
★★★★★
Worked as expected
Easy website, received part in short time
Guest - August 21, 2019
Verified Purchase
★★★★★
★★★★★
It fixed my air nailer
It came by mail and was in a sealed package. Fast shipping
Guest - August 21, 2019
Verified Purchase
★★★★★
★★★★★
Quick easy repair !
The part was less then the shipping, but worth the cost.
Works like new.
Michael - August 23, 2019
Verified Purchase
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I used an allen wrench to open the stapler (removed the 4 retaining screws) and found an obviously broken/shattered o-ring. I looked for a replacement part on the website and ordered it. The replacement was easy. My only suggestion would be to absolutely clean out any remaining o-ring parts in the stapler prior to re-installing the new o-
... Read morering. Once the new o-ring is seated, it\'s very difficult to remove it to allow you to remove any bits of the old o-ring that are still left.
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Sudden fail in nailer with constant heavy air leaking from the top rear crown area. Result was not enough pressure to fire the nailing pin.
Glove up. (Nitrile/Latex)
Carefully removed crown cap via 4 allen screws being mindful not to allow the spring load to force and further damage.
Inspect piston chamber for wear and adequate oiling.
Remove piston cap and O ring. (probably yellow to orange in color)
Thoroughly clean all exposed areas and RE oil.
... Read more/>Firmly place new O ring in place. Working with one finger around the groove while holding one side down with a thumb. It wont look like it suppose to fit, but it does.
To make things easier, you may want to completely pull the piston cap off of the crown cap.
Keep in mind the additional O rings, and placements.
Once in place, properly and moderately oil with suitable tool oil and gently push back into place while hand tightening the screws back into place.
1/8 to 1/4 turn past hand tight should be sufficient to reseal the crown into place.
Test at 30 psi and gradually increase to confirm seals before testing the firing pin.
Few more drops of oil into the chuck load and you should be complete.
Recommend full replacement of O rings and thoroughly cleaning entire unit during this repair. Highly likely all rubber O rings are failing and could probably use a blunt file to the firing pin.
Afterward it will feel like a BRAND NEW TOOL for under 20 bucks. Certainly is better than having to buy a new one at over 100!!!
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Blew o-ring (seal) in brad nailer and also broke housing cap air deflector
1). Removed 4 hex screws from housing cap, retained for re-use.
2). Removed housing cap, saved spring & head valve seal (still in good condition) to go into new housing cap.
3). Cleaned broken o-ring parts from back of piston and within the nail gun housing.
4). Placed new o-ring on piston.
5). Inserted new seal, s
... Read moreaved spring & head valve seal into new housing cap.
6). Attached new head gasket & housing cap to nail gun housing using hex screws.
7). Tightened screws, added a few drops of oil and test fired the mail gun.
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Stapler would not activate, there was an air leak.
Remove the top cap, exposing the underside of the piston set-up. The damaged o-ring was obvious, and the new o-ring slid easily into place. Replace the top cap and tighten the screws evenly.
I removed the top cap of the nail gun. And noticed the worn parts. I then removed the old parts and clean the inside of the gun thoroughly. Then easily replaced the new parts. Oil the o-ring before placing on head valve piston
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Porter Cable BN200A Air Nailer, would not fire - massive internal air leak
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,
... Read morethe nailer performed like new.
Big endorsement for ereplacementparts.com. They had the parts to keep this tool in operation.
Removed four allen screws removed damaged o-ring and put back together. Very easy repair. The advantage of using e-replacement is the online diagnosis.
Removed Allen screws...need good hardened steel wrenches...removed and replaced o rings and seal...did not replace piston o-ring. Greased and reassembled. (Used white lithium grease). Tightened well... ..still leaked a tad.....fired one nail and leak stopped. Guess the o- rings needed to seal.
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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.
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