Part Location Diagram of 851606-S DeWALT O-RING, 1.850X.210
See part 16 in the diagram
( Grid squares measure 1x1 inch )

O-RING, 1.850X.210 851606-S

Manufactured by:
DeWALT
ERP Number:
ERP18986869
Part Number:
851606-S
Original Equipment Manufacturer ?
  Works with your model  F21PL2!
On Order

Easy 

15 - 30 mins 

(3 rated repairs) ?
  Works with your model   F21PL2!

Product Description

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This is an authentic manufacturer approved replacement part designed for use with nailers. It helps to provide an air tight seal for the piston. 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
  • Porter Cable
  • Black and Decker
  • Craftsman
  • Stanley
This part works with the following products:
  • Nailer
Part# 851606-S replaces these:
851606-S, P851606-S,

Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(3 Reviews)
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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 

(3 rated repairs) ?
  • 1
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Air leak and random nail fire when connecting air hose

Alan from Myersville, Maryland

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Replaced all of the internal o-rings. A complete rebuild kit is no longer available. I also replaced the trigger assembly. My Bostitch nail gun now works like new again!
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Air Leak at top, Nail would not set, Driver would not returrn

donald from Cambridge, Ohio

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers, Wrench set
Parts Used:
851606-S, 121072, TVA6
1 Removed top replaced O ring.
2 Instructions came with Trigger Valve Kit very easy to replace old valve .
3 Assembly, Trip Foot did not require any tools ,just pushed it in place.
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Air was leaking from the top.

Charles from Doswell, Virginia

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Parts Used:
851606-S
Removed the screws from the cap
Removed the worn o-ring
Installed the new o-ring
Cleaned and lubed the internal parts of the nail gun
Replaced the cap
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP18986869
Manufacturer Part Number: 851606-S
Brand Model Number Description
Bostitch BFN21PL Nailer - Shell 21pl Bostictch Bull
Craftsman CMP21PL Nailer - 21* Plstc Frmng Nler
Bostitch F21PL Nailer - Pneumatic Stick Nailer
Bostitch F21PL2 Nailer - Pneumatic Stick Nailer
Bostitch F28WW Nailer - Pneumatic Stick Nailer
Bostitch F33PT Nailer - Pneumatic Stick Nailer
Bostitch F33PTSM Nailer - Stick Nailer
Black and Decker FC350B Nailer - 3-1/2 Framing Nailer
Porter Cable FR350B Nailer - 3-1/2" Framing Nailer
Porter Cable FR350BR Nailer - Full Round Head Framing Nailer
Bostitch N86C Nailer - Coil-Fed Pneumatic Nailer
Bostitch N88RH Nailer - Pneumatic Stick Nailer
Bostitch N88RH-2MCN Nailer - Pneumatic Stick Nailer
Bostitch N88RH17-2 Nailer - Pneumatic Stick Nailer
Bostitch N88WW Nailer - Pneumatic Stick Nailer
Bostitch N88WWB Nailer - Pneumatic Stick Nailer
Bostitch N89C Nailer - Framing Nailer
Bostitch N89C-1 Nailer - Coil Framing Nailr
Bostitch N89C-1P Nailer - Heavy Duty Pallet, Fence Nailer
Bostitch N89C-HQ Nailer - Framing Nailer
Bostitch N89RH17 Nailer - Pneumatic Stick Nailer
Bostitch N89RH17-1 Nailer - Nailer
Bostitch N89RH17-2MCN Nailer - Pneumatic Stick Nailer
Bostitch N95162 Nailer - Pneumatic Stick Nailer