Part Location Diagram of 850143 DeWALT O-RING-.487X.103
See part 15 in the diagram
( Grid squares measure 1x1 inch )

O-RING-.487X.103 850143

Manufactured by:
DeWALT
ERP Number:
ERP12496767
Part Number:
850143
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!
Minimum Quantity of 2 required

A Bit Difficult 

30 - 60 mins 

(1 rated repair) ?

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Product Description

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Genuine Bostitch replacement part, this part is sold individually. The purpose of this O-Ring is to create a seal around the Piston Stem of the Bostitch Floor Nail Guns shown below. Over time O-Rings can wear and become brittle or stretched. When your Nail Gun becomes sluggish or the Driver won't retract, it may be time to tear the Gun down and inspect all of the O-Rings and Seals.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Bostitch
  • DeWALT
  • Porter Cable
  • Stanley
This part works with the following products:
  • Nailer
  • Miscellaneous
Part# 850143 replaces these:
850143, P850143,

Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(4 Reviews)
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Questions & Answers

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Customer Repair Instructions

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A Bit Difficult 

30 - 60 mins 

(1 rated repair) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Gasket was broken in half when received so I had to use old one.

Andre from Oneonta, Alabama

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Wrench (Adjustable)
1 removed O-rings
2 cleaned all parts
3 used air gun oil to lube o-rings
4 replace o-rings
5 used light film of air gun oil to lube where o-ring would be sliding
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