15% OFF NO MIN | 20% OFF $100+ | ONLINE ONLY
USE CODE
SEPTSAVE
*
Exclusions apply.
Advance Auto Parts Logo
Choose a Store
  • Shop All
  • Replacement Parts
  • Performance Parts
  • Accessories
  • Oil & Fluids
  • Special Offers
  • Advance Rewards
  • Advice & How-Tos
  • Project Guides
  • FAQ / Help Desk
Share
Product thumb
Product thumb
Product main large

National O-Ring Assortment Kit

No Reviews
Part # OK 311
3 year warranty
Loading...
How Would You Like To Get This Item?

Store Pickup

Loading...Loading...Loading...

Same Day Home Delivery

Loading...Loading...Loading...

Home Delivery

Loading...Loading...Loading...
Loading...
Loading...
Loading...Loading...Loading...Loading...Loading...

Product Information

Product Details
Part No. OK 311
Warranty Details (3 Year Warranty)
Product Features:
  • Standard size
  • Temperature range: -40 deg. F to 225 deg. F; -40 deg. C to 107 deg. C
  • Excellent resistance to petroleum-based oils and fuels, water & alcohol
  • Good resistance to acids & bases (except those with a strong oxidizing effect)
  • Designed for variety of industrial and automotive applications
Specifications
Inside Diameter:
2.156 in

Material:
Nitrile

Outside Diameter:
2.885 in

Thickness:
0.375 in
Loading...
Loading...Loading...Loading...Loading...Loading...
0 out of 5
0 Customer Reviews
Loading...
Loading...Loading...Loading...Loading...Loading...
No results
Loading...
Loading...Loading...Loading...Loading...Loading...
Feedback
Be The First To Know About Deals And Promotions.
Plus, create an account to receive $5 off of $20 or more.
TOP REPLACEMENT PARTS
Brake Pads & Shoes
Brake Rotors
Alternators
Water Pumps
Starters
Brake Calipers

Order Lookup

Help Desk

Store Locator

In Store Services

Mobile App

CUSTOMER SUPPORT
Accessibility Statement
Contact Us
Forgot Password
Help Desk
In Store Pickup
In Store Services
Order Tracking
Recall Information
Return Policy
Same Day Delivery
© 2026 Advance Auto Parts
Privacy Policy
Terms of Use
Site Map
ADVANCING A WORLD IN MOTION®