Part Location Diagram of 121799 DeWALT O-RING-1.287 X .210
See part 75 in the diagram
( Grid squares measure 1x1 inch )

O-RING-1.287 X .210 121799

Manufactured by:
DeWALT
ERP Number:
ERP12409674
Part Number:
121799
Original Equipment Manufacturer ?
  Works with your model  MIIIFS!
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(2 rated repairs) ?
  Works with your model   MIIIFS!

Product Description

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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.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Bostitch
  • DeWALT
This part works with the following products:
  • Nailer
  • Miscellaneous
Part# 121799 replaces these:
121799, P121799,

Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(1 Review)
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Questions & Answers

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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.

Easy 

15 - 30 mins 

(2 rated repairs) ?
  • 1
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Driver not returning

Gene from Uriah, Alabama

2 of 2 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers, Wrench set
Parts Used:
105043, 121799, RBK9
With your schematic of the floor nailer and the trouble shooting tips, the repair easy. Thank You,
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Bad O ring

kenneth from 2030 Dogwood Dr. Se. AUBURN, washington 98092, Washington

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver
Parts Used:
121799
Replaced O ring
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  • 1