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
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![Bostitch Bostitch](images/29443_white.png)
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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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Does this fit my product?Questions & Answers for Frame/cap Gasket
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
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, hex wrench
Parts Used
Leaking air top cap
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen Wrench
Parts Used
Cylinder seal split with age.
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
, Allen wrench
Cylinder seal cracked, (it was about 20 years old but saw occasional use)
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
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.
Nail gun leaking air
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
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.
Air leaks.
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Power Drill, Socket set
Trigger was leaking air, both end gaskets were leaking and changed the trigger to sequential
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Allen wrenches
Air seal blew out.
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
The nailer was leaking air and would not drive a nail.
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Scotch-brite to clean the piston area.
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
Leaking air
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Power Drill
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 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.