Medium
15-30 minutes
This is an authentic manufacturer sourced replacement part designed for use with Bostitch staplers/nailers. It helps to provide an air tight seal for the poppet. It is made out of rubber material and it is sold individually. To complete this repair you will need a hex key/allen wrench.
O-ring 121799
OEM part for: Bostitch, DeWALT
Part Number: 121799
$6.78
In Stock
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Frequently Purchased Together ?
Compatibility
This part will fit the following 14 machines
Bostitch
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MIIIFN (17030000) Flooring Nailer Power Tool View Diagrams & Manuals
MIIIFN (Type 0) Flooring Nailer Power Tool View Diagrams & Manuals
MIIIFS (121530000 and Higher) Flooring Stapler Power Tool View Diagrams & Manuals
MIIIFS (17030000 and Higher) Flooring Stapler Power Tool View Diagrams & Manuals
MIIIFS (Type 0) Flooring Stapler Power Tool View Diagrams & Manuals
MIII812CNCT (Type 0) Misc Tool Power Tool View Diagrams & Manuals
DeWALT
DWMIIIFS (Type 1) 15.5ga Floor Staplr View Diagrams & Manuals
DWMIIIFN (Type 0) 16 Ga L Cleat Flr Na View Diagrams & Manuals
DWMIIIFN (17030000 and Higher) 16 Ga L Cleat Flr Na Power Tool View Diagrams & Manuals
DWMIIIFS (17030000 and Higher) 15.5ga Floor Staplr Power Tool View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Stapler Parts
- Nailer Parts
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Hard to find part
During a repair of a floor nailer, I realized that this o-ring did not come as part of the repair/rebuild kit... very unusual and frustrating, but that's a conversation for a different day. The good news is that I've used eReplacementParts.com in the past and was able to find this o-ring with their helpful schematics. Initially, I visited manufacturer websites and dealer websites and had trouble trying to identify the particular o-ring. When visiting eReplacementParts.com, I was easily able to identify the part and get it ordered. I received the o-ring in a few days and was able to make the repair. Next time, I think I'll try eReplacementParts.com first and save myself some time and frustration.
David -
January 26, 2023
Verified Purchase
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eReplacementParts Team
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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.
Bad O ring
kenneth - January 20, 2023
Tool Type
Stapler
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Nutdriver, Hex wrench
Parts Used
Replaced O ring
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Driver not returning
Gene - May 15, 2016
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Wrench Set, Allen wrenches, mallet
With your schematic of the floor nailer and the trouble shooting tips, the repair easy. Thank You,
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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.
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