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O-ring 883848

Part Number: 883848

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Questions & Answers

Repair Instructions

Product Information

Description:

O-rings are designed to contain thousands of pounds of pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness.

rnrnThere are many causes for O-Ring failure, such as pressure, friction, temperature or chemicals. The most common are:

• Extrusion and Nibbling – O-ring has ragged, tattered edges. These are commonly caused by pressure spikes which shear off tiny “bites” from the o-ring, or caused by clearance gaps.

• Abrasion – One or both sides of the o-ring appear rough and slightly flattened. Commonly caused by a contact surface that is too rough, contains grit or is too smooth to allow lubrication.

• Over Compression – O-ring is flattened on both sides and may have a “ring” split along its length. Commonly caused by excessive pressure or heat.

• Heat Hardening – O-ring has a pitted or cracked surface, and often is flattened on both sides. Caused by temperature exceeding o-ring capacity.
• Weather/Ozone Cracking – O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching causes similar cracking.

Warning: California's Proposition 65

Frequently Purchased With

O-ring
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O-ring
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Compatibility

This part is compatible with the following machines:

Porter Cable

NS150 Narrow Crown Stapler
NSS150 Super Narrow Crown 18 Gauge Stapler
NS100 Type 1 1" NC Stapler Kit
BN138 18 Ga. 1-3/8" Brad Nailer
BN200B 18 Ga. 2" Brad Nailer
NS150A Type 1 1-1/2" Stapler
NS150A Type 2 1-1/2" Stapler
NS150B Type 1 18Ga 1/4In Crown Stpl
FN200 Type 1 2" Finish Nailer
FN250 Type 1 2-1/2" Finish Nailer
FR350 Type 2 Round Head Framer
FRP350 Type 1 3-1/2" Round Head Framer
NS100B Type 1 18 Ga. 1" Narrow Crown Stapler
FN251 (Type 1) Flooring Nailer
J-NS100 (Type 1) 1in Nc Stapler Kit
RN175A (Type 1) Coil Roofing Nailer Power Tool
BN125 (Type 1) 1 1/4in Brad Nailer Power Tool
BN125A (Type 1) Finish Nailer Power Tool
BN138 (Type 1) Finish Nailer Power Tool
BN200 (Type 1) 2in Brad Nailer Kit Power Tool
BN200A (Type 1) Finish Nailer Power Tool
BN200B (Type 1) Finish Nailer Power Tool
DA250 (Type 1) Finish Nailer Power Tool
DA250A (Type 1) 2 1/2in Angle Nailer Power Tool
FN250A (Type 1) 2 1/2in Finish Nailer Power Tool
FN250B (Type 1) Finish Nailer Power Tool
FCP350 (Type 1) 3-1/2in Hp Ch Framer Power Tool
FM350A (Type 1) Framing Nailer Power Tool
FR350A (Type 1) 3-1/2in Rh Framer Power Tool
NS100A (Type 1) Stapler Power Tool
NS150 (Type 1) 1 1/2innc Stapler Kit Power Tool
NSS150 (Type 1) Super 1.5 Nc Stapler Power Tool

Expand the 64 compatible machines

Products Compatibility

This item works with the following types of products:

• Nailer
• Stapler

Repair Guides

Watch the Repair Video for O-ring

Questions & Answers for O-ring

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Air leaking from top of gun it's a framing Gun.

Michael for model number FR350A asked on 2022-03-31

Hello Michael, thank you for writing. Deteriorated O-rings that cause air leaks, a trigger valve part A08368 that won't fire, or a leaking cylinder seal 910768 or a worn driver bumper 910771, which prevents the gun from making a complete stroke. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you.

Related Parts: Trigger Valve Assembly (not Th Cylinder Bumper Seat (nylon)

Repair Instructions: Submitted by Customers Like You

2 of 2 people found this instruction helpful

Tool Type:

Nailer

Parts Used:

Plunger Spring - 883939

O-ring - 883848

O-ring - 883942

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Adjustable Wrench, Small pick

Air leak at trigger

Removed trigger assembly and replaced all o-rings and spring

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1 of 1 people found this instruction helpful

Tool Type:

Nailer

Parts Used:

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Screwdriver, Nutdriver, Allen wrench

Air leak at nose

I broke nailer down completely and reinstalled all new parts..You make it very easy for repair..All your parts are clearly marked for ease of replacement..Thanks for all you do..Rich Lincoln Ca

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Tool Type:

Nailer

Parts Used:

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Screwdriver, Wrench Set, Allen set

Trigger on gun leaked

Removed trigger, replaced all o-rings

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Tool Type:

Nailer

Parts Used:

Repair Difficulty:

Medium

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver, Pliers, Wrench Set, Hammer , pin driver

Wouldn’t retract driver

Everyone said top bumper causes the problem. The bumper was shot so I replaced it. Still did the same thing. Messing with it I found that if I pulled on the trigger pin just a little bit it would let go and retract the driver. I pulled the trigger assembly out and started messing around with it. No luck. However I now noticed a slight air leak at the trigger. I purchased all new O rings and trigger pin and spring. Installed and WahLah. it works. Thanks for your help with parts. Have referred U to friends.

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Tool Type:

Nailer

Parts Used:

O-ring - 883935

O-ring - 883848

Repair Difficulty:

Medium

Time Spent Repairing:

15-30 minutes

Tools Used:

Wrench Set, Small hammer, Roll pin punch, Small dental pick

Air leak on trigger

Drive out roll pin on trigger
(Wrench) Unscrew air valve assembly, Please note how the assembly goes together.
Replace all O-Rings. Most of the O-Rings are easy to find in a assortment set the two small ones on the spool and there is a larger one with a about 1/16" cross section that are easily available, those I had to order.
Use the dental pick to remove the O-Rings and re-install the new ones, take care not to over stretch the new ones.
Lube everything with a little o-ring lube or airline oil.
Re-assemble air valve, and screw into gun.
Put trigger switch back in and drive roll pin into place.

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Tool Type:

Nailer

Parts Used:

O-ring - 883848

Retaining Ring - 897359

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

, my finger

rubber ring broke

put ring on with finger

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Tool Type:

Nailer

Parts Used:

O-ring - 883936

O-ring - 883938

O-ring - 883848

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Wrench Set, Allen wrench, scribe

Air was leaking by the trigger 'O' rings.

Removed the trigger assembly, replaced the 'O' rings and re-assembled.

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Tool Type:

Nailer

Parts Used:

Check Seal - 886119

O-ring - 883848

Urethane Retainer - 890725

O-ring - 883837

Piston Stop - 904685

O-ring - 904686

Head Valve Seal - 904689

Repair Difficulty:

Medium

Time Spent Repairing:

15-30 minutes

Tools Used:

, Allen wrench

Piston would not return. Just blew air

The parts I replaced where destroyed, so I looked at the parts list and figured how to put in the new parts I had ordered. Easy Peasy

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Tool Type:

Nailer

Parts Used:

O-ring - 883938

O-ring - 883848

O-ring - 883942

Piston Bumper - 901901

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Wrench Set, Allen wrench

Piston would not return, leaking air

Removed the top cap
Replaced piston bumper and o-rings.
Installed the top cap

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Tool Type:

Nailer

Parts Used:

Urethane Retainer - 890725

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Wrench Set

FR350 framing gun was leaking air from trigger

Trigger assembly is screw in type; Removed retainer and the pin that secures the trigger, removed trigger then used wrench to loosen and remove the trigger assembly.
Disassembled the trigger valve, breather valve, plunger.
Removed and replaced all the o-rings: 1x- 883831, 1x-883935, 2x- 883936, 1x- 883938, 2x- 883848, 1x- 883942, 1x-urethane retainer 890725.
Reinstalled trigger valve assembly.
Air leak is gone, nailer working great!

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Reviews

Average Rating (out of 5):

5 Reviews

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Easy repair

Everything was as ordered, arrived in a timely manner and in good condition. Nail gun is now in good working condition. Thanks Ereplacement parts . Jerry J.

Guest - June 2, 2020 Verified Purchase

Easy repair

Arrived quickly and fixed problem

Guest - February 26, 2020 Verified Purchase

worked as expected

the part was easy to find. It shipped the same day. There is nothing to complain about. Good job

Guest - January 30, 2020 Verified Purchase

Worked well

Issue with nail gun was on the list of common problems. Clicked on the problem and was given a list of parts. Ordered the parts, replaced them, gun works fine.

Guest - September 13, 2019 Verified Purchase

The right part

Just as described, I found it using the - this is my problem, this is what will fix it section next to the tool blow up. Fit perfect and solved the problem. Arrived when they said it would.

Louis - August 13, 2019 Verified Purchase

Verified Purchase

eReplacementParts Team

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Product Information

Repair Guides

Watch the Repair Video for O-ring