Easy
30-60 minutes
Genuine Hitachi replacement part, this item is sold individually.
The 877368 O-Ring is placed in the groove on top of the Piston of the model numbers shown below.
This part aids in the operation of the piston driving the fastener and recoiling the piston.
If the piston is not working properly check this part along with all of the other O-rings and Seals in the tool.
O-ring 877368
OEM part for: Metabo HPT (Hitachi)
Part Number: 877368
$4.99
In Stock
Ships within 1 business day 
Jump To:
Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 36 machines
Metabo HPT (Hitachi)
NR83AA3 Clipped Head Framing Nailer View Diagrams & Manuals
NR90AC3 Full Head Framing Nailer View Diagrams & Manuals
NR65AK Strap-Tite Fastening System Strip Nailer View Diagrams & Manuals
NR65AK(S) Short Magazine Strap-Tite Fastening System View Diagrams & Manuals
NV65AC Coil Pallet Nailer View Diagrams & Manuals
NV75AG Coil Siding/Framing Nailer View Diagrams & Manuals
NV83A2 Full Round Head Coil Nailer View Diagrams & Manuals
NV85AG Coil Siding/Framing Nailer View Diagrams & Manuals
NR83A2(S) Framing Nailer, Full Head, Plastic Strip Collation (without Depth Adjustment) View Diagrams & Manuals
83AA2 Strip Nailer View Diagrams & Manuals
NR83A 3-1/4" Full Head Nailer View Diagrams & Manuals
NR83AA 3-1/4" Clipped head Framing Nailer View Diagrams & Manuals
NR83AA2 3-1/4" Clipped head Framing Nailer View Diagrams & Manuals
NR90AC2 3-1/2" Full head Framing Nailer View Diagrams & Manuals
NV65AA Nailer View Diagrams & Manuals
NV75A Nailer View Diagrams & Manuals
NV83A 3-1/4" Full Head, Framing Coil Nailer View Diagrams & Manuals
NV83A3 Nailer View Diagrams & Manuals
NV83A4 Nailer View Diagrams & Manuals
NV83A13 Nailer View Diagrams & Manuals
NR83A3S Strip Nailer View Diagrams & Manuals
NR83A3 Strip Nailer View Diagrams & Manuals
NR83AA4 3-1/4" Paper Collated Framing Nailer View Diagrams & Manuals
NR83A2 Strip Nailer View Diagrams & Manuals
NR65AK2 Strip Nailer View Diagrams & Manuals
NR83A5 Strip Nailer View Diagrams & Manuals
NR65AK2M Strap-Tite 2-1/2 Inch Strip Nailer View Diagrams & Manuals
NR83A5(S)M 3-1/4 Inch Rnd Head Framing Nailer W/Out Depth Adjustment View Diagrams & Manuals
NR83A5M 3-1/4 Inch Rnd Head Framing Nailer W/ Depth Adjustment View Diagrams & Manuals
NR83AA5M 3-1/4 Inch Clipped Head Fram Nailer Accepts Paper Tape Collated Nails View Diagrams & Manuals
NV75A5M 3 Inch Siding/Framing Coil Nailer Plastic And Wire Collated Coil View Diagrams & Manuals
NV83A5M 3-1/4 Inch Coil Framing Nailer 2 Inch-3-1/4 Inch X 0.099 Inch-0.131 Inch View Diagrams & Manuals
NR65AK2(S) Nailer View Diagrams & Manuals
NR83A2(Y) Nailer View Diagrams & Manuals
NR83A5(S) Nailer View Diagrams & Manuals
NR83AA5 Nailer View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Nailer Parts
Customer Part Reviews ?
Average Rating (out of 5):
Click to filter by ratings:
5 stars
3
4 stars
0
3 stars
0
2 stars
2
1 stars
0
< PREV
- 1
I-ring
You sent them. They fit!
Guest -
January 27, 2022
Verified Purchase
Found what i needed
Perfect fit and function. Will use this website again, really appreciate marked diagrams.
Guest -
April 29, 2021
Verified Purchase
Very good services
Hitachi coil
Guest -
January 26, 2021
Verified Purchase
repair went well
this order took weeks to be shipped
Frank -
March 9, 2022
Verified Purchase
Did NOT fit the tool at all. Turned out to be useless. However, ....
This part does NOT fit, nor is there a place for it in my Hitachi NR83A Nailer. However, your parts people were very helpful and I finally fixed my top end air leak with part 12A that I purchased from you. We in Hawaii (and also Alaska) appreciate the fact that you will ship usig USPS, which is way more reasonalble than FEDEX and UPS. Mahalo.
Guest -
September 4, 2019
Verified Purchase
t
t
t -
t days ago
Verified Purchase
eReplacementParts Team
t
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for O-ring
No questions have been asked yet
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.
Internal plastic parts & O rings plus gaskets disintegrated
RON - October 9, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Removed all screws
Removed head
Removed piston
Changed out o rings
Cleaned up gasket surfaces,.
Installed new parts
Added oil and tested gun.
Removed head
Removed piston
Changed out o rings
Cleaned up gasket surfaces,.
Installed new parts
Added oil and tested gun.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Leaking air from head
DAVID - April 28, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Allen wrench
Removed the top of the nail gun, located the worn parts and ordered them.
Replaced the worn parts with the new ones. It fires like new again
Replaced the worn parts with the new ones. It fires like new again
Did you find this story helpful?
Thanks for voting and helping fellow customers!
leaks air at top and double fire
wayne - July 29, 2019
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, Nutdriver, picks for \\\'O\\\' rings
1. removed top and replaced head cap and gasket
2. Removed cylinder and replaced 'O' rings
3. removed nose and replaced gasket and piston bumper
4. Cylinder plate did not come out easily but other than that repair went well
2. Removed cylinder and replaced 'O' rings
3. removed nose and replaced gasket and piston bumper
4. Cylinder plate did not come out easily but other than that repair went well
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Nailgun leaked air.
Carlos - January 30, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Wrench Set, Scraper blade
Took apart and replaced the parts. Reassembled.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Leak too much air,
Charles - May 14, 2017
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Wrench Set, Allen wrench
Removed the four screws from the top cover
Looked to see what parts I would need to fix the leak.
I ordered about every o-ring and seal in the gun
Replaced all that I ordered
The gun is like new again
Looked to see what parts I would need to fix the leak.
I ordered about every o-ring and seal in the gun
Replaced all that I ordered
The gun is like new again
Did you find this story helpful?
Thanks for voting and helping fellow customers!
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
