Easy
15-30 minutes
This is an authentic Bostitch replacement part that is OEM sourced to ensure quality. The gasket is intended to be used with pneumatic nailers. This item is used to seal the connection between the end cap and the nailer's frame. A hex driver is needed to install this item. The gasket is sold as a single part.
Frame/cap Gasket 9R199852
OEM part for: Bostitch
Part Number: 9R199852
$6.06
In Stock
Ships within 1 business day 
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Compatibility
This Frame/cap Gasket will fit the following 53 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Bostitch
Show More Compatible ModelsThis item works with the following types of products:
- Nailer Parts
This part replaces obsolete part #: N70118
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excellent repair part, easy fix, highly recommended
My nail gun is as good as new.
Guest -
August 7, 2020
Verified Purchase
No Brainer!
What a great place. Easy to use website, was able to quickly identify the part I needed, only took a couple of minutes to place order, and faster than ever the part was delivered. Fixed my framing gun for $15 and saved myself hundreds of dollars! Will definitely use this company again.
Guest -
June 14, 2020
Verified Purchase
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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.
Gasket leaked air
Ray - December 24, 2015
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, hex wrench
Parts Used
Remove head and gasket. Replace head and new gasket
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Leaking air top cap
Brion - November 4, 2019
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen Wrench
Parts Used
Removed the 4 Allen screws removed old gasket and scraped residual gasket material from surfaces installed new gasket and cap as original and tighten all screws. Be careful to align internal parts while pushing too cap down there will be spring pressure.
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Cylinder seal split with age.
Jason - July 21, 2018
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
, Allen wrench
Laid out a towel on the kitchen table. Disassembled. Cleaned (everything was filthy). Replaced old parts with new ones. Reassembled. Worked like a champ.
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Cylinder seal cracked, (it was about 20 years old but saw occasional use)
Chris - April 10, 2018
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
1 - Loosen the 4 Allen head screws from nailer head. It is slightly spring loaded so if your gasket is holding the head you may want to break the seal before completely removing the 4 allen head screws.
2 - Remove the old cylinder seal. Clean out any debris.
3 - Clean the nailer body and head mating surfaces for the new gasket.
4 - Put a few drops on oil on the new seal to help it snap into place without damage.
5 - Re-install the head with the new gasket. Tighten the allen screws using a typical "star" pattern.
2 - Remove the old cylinder seal. Clean out any debris.
3 - Clean the nailer body and head mating surfaces for the new gasket.
4 - Put a few drops on oil on the new seal to help it snap into place without damage.
5 - Re-install the head with the new gasket. Tighten the allen screws using a typical "star" pattern.
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Nail gun leaking air
John - December 20, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
1) Removed nail gun top cap with allen wrench.
2) Separated gasket attached to cap.
3) Pulled out cover and spring from head cap, then removed damaged piston stop.
4) Cleaned out inside of head cap with soft cloth.
5) Installed new piston stop, spring and cover.
6) Placed new cap gasket on main body of nail gun.
7) Gently pushed head cap on to main body of nail gun, paying close attention to alignment of both.
8) Placed (4) fasteners with a drop of lock adhesive on each and tightened firmly.
2) Separated gasket attached to cap.
3) Pulled out cover and spring from head cap, then removed damaged piston stop.
4) Cleaned out inside of head cap with soft cloth.
5) Installed new piston stop, spring and cover.
6) Placed new cap gasket on main body of nail gun.
7) Gently pushed head cap on to main body of nail gun, paying close attention to alignment of both.
8) Placed (4) fasteners with a drop of lock adhesive on each and tightened firmly.
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Air leaks.
george - November 15, 2017
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Power Drill, Socket set
Replaced the frame gasket and the O-rings.
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Trigger was leaking air, both end gaskets were leaking and changed the trigger to sequential
Bill - October 29, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Allen wrenches
Just took apart and reassembled with the new parts
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Air seal blew out.
glenn - October 25, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
Disassembled the tool and replaced the air seal. Reassembled and tested.
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The nailer was leaking air and would not drive a nail.
Teddy - April 24, 2017
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Scotch-brite to clean the piston area.
I had a o-ring seal kit on the shelf. I found the old seal stuck and gunked up. I had to use scotch-brite to clean that surface before installing the new o-rings
For some reason I did not have a piston stop and I don't know how this nailer ever worked without it? After cleaning everything up, lubricating and installing all the parts, the nailer worked fine.
Thanks
For some reason I did not have a piston stop and I don't know how this nailer ever worked without it? After cleaning everything up, lubricating and installing all the parts, the nailer worked fine.
Thanks
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Leaking air
Larry - February 4, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Power Drill
Removed the top cap of the nail gun.
Removed all of the worn and broken parts
Completely cleaned the internal parts and oiled them
Replace the top cap of the nail gun
Removed all of the worn and broken parts
Completely cleaned the internal parts and oiled them
Replace the top cap of the nail gun
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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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