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Nitrile 70 Durometer O-Ring, General Purpose (N0674-70)
Parker's nitrile rubber (NBR) O-rings are very compatible with oils and gases.
Use our configurator to build the right part for your application.
Product Overview
Tech Specifications
Product Support
Aerospace Reference Guide--5800
Parker O-Ring Handbook --ORD 5700
Parker O-Ring Material Offering Guide--5712
Oil & Gas Industry Material Reference Guide--ORD 5801
Parker Tracking System and RFID Technology
Technical Glossary
Compound Shrink Class
Diagnosing damaged O-rings
O-Ring Division Frequently Asked Questions
Parker O-Ring eHandbook
VIDEO: How to lubricate an O-ring
VIDEO: Proper installation of an O-ring Face Seals
VIDEO: Proper installation of an O-ring Female Radial Seal
VIDEO: Proper installation of an O-ring: Dovetails
VIDEO: Proper installation of an O-ring: Male Radial
Wind Power O-Rings - ORD 5762
Basic Technical Glossary -- seal technology training
Introduction to Sealing -- seal technology training
Seal Failure Modes: Diagnosis and Solutions--Webinar
O-Ring Material Test Reports
RoHS Compliance
EMG OES Regulatory Declarations, Compliance & Safety Data Sheets (SDS) library
How to read a test report
N0674 Material Test Report
Parker SDS O-ring and rubber materials
Prop 65 General Statement
Shelf Life
Mobile inPHorm app
VIDEO: Mobile inPHorm overview
O-Ring Selector Tool (Imperial units)
Healthcare and Life Sciences Solutions - Medical Devices Manufacturing Products
O-Rings Knowledge Base
Description
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Parker's Nitrile rubber (NBR) is the general term for acrylonitrile butadiene copolymer. The acrylonitrile content of nitrile sealing compounds varies considerably (18% to 50%) and influences the physical properties of the finished material. The higher the acrylonitrile content, the better the resistance to oil and fuel. At the same time, elasticity and resistance to compression set is adversely affected. In view of these opposing realities, a compromise is often drawn, and a medium acrylonitrile content selected. NBR has good mechanical properties when compared with other elastomers and high wear resistance. NBR is not resistant to weathering and ozone.
• Heat resistance
• Up to 100°C (212°F) with shorter life @ 121°C (250°F)
• Cold flexibility
• Depending on individual compound, between -34°C and -57°C (-30°F and -70°F)
• Chemical resistance
• Aliphatic hydrocarbons (propane, butane, petroleum oil, mineral oil and grease, diesel fuel, fuel oils) vegetable and mineral oils and greases
• HFA, HFB and HFC hydraulic fluids
• Dilute acids, alkali and salt solutions at low temperatures
• Water (special compounds up to 100°C) (212°F)
• Used for general purpose, MIL-G-21569 CL 1, UL Listed
*Custom sizes and coatings/markings are available upon request. Contact Parker O-Ring Division at 859-269-2351 for design and pricing assistance.
Description
Performance Characteristics
Inside Diameter
0.029 to 25.940 inch
Width
0.04 to 0.275 inch
Polymer Material Options
Nitrile Butadiene Rubber (NBR, XNBR)
Thermal Application Type
Standard (-30 to 250°F)
Minimum Operating Temperature
-30 °F
Durometer
70 Shore A
Maximum Operating Temperature
250 °F
For Fluid Type
Oil
Industry
General
Specifications Met
UL
MIL/Aero
UL-Fire
UL-GasAlc
UL-MPSGas
UL-NatGas
UL-FuelOil
UL-HtdFuelOil
UL-Ammonia
UL-DryChem
MIL-G-21569B Class I
Region of Origin
North America
Internally Lubricated
No
Color
Black
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users having technical expertise. The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors. To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems...
