QN70283

283 X-RING
NITRILE 70 DUROMETER
CS: .139 IN (3.53MM)
ID: 16.955 IN (430.66MM)

QN70283

Quantity Pricing (ea)
  • 1 for $20.80
  • 4 for $18.80
  • 20 for $16.70
  • 40 for $14.60
  • 80 for $12.50
Stock & Availability (ea)
In Stock: 9
Inbound Stock: 3,500
Qty Available
3,500 11/30/2026
Offsite Stock: 0 ($50 Line Min)
New Production: Unlimited ($250 Line Min)
Expedited Shipping*: 08/12/2026
Standard Shipping: 11/02/2026
*Add your desired qty and click ADD TO CART to see expedite fees and options.

Additional information

Weight 0.03453 lbs
Shipping Dimensions 17.233 × 17.233 × 0.139 in
Material

Color

Size

283
Durometer

Minimum Temperature -22
Maximum Temperature 212

Description

SPEC SHEET: Nitrile (Buna) 70 Durometer.pdf

Nitrile Rubber (NBR)

Material Description

Nitrile rubber, also known as NBR or Buna N, is one of the most commonly used sealing elastomers due to its resistance to petroleum-based fuels and
lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene. There are a number of common variations of
nitrile compounds.

Acrylonitrile Content

The acrylonitrile (ACN) content of the polymer chains can be varied from 18% to 50%. Lower ACN content gives better low-temperature properties but poorer
fuels and polar lubricants. Higher ACN content gives poorer low-temperature properties but improved fuels and polar lubricants resistance. Standard NBRs
typically have 34% ACN content.

Cure system: Sulfur-cured

Standard Nitriles are usually sulfur-cured. Sulfur-cured compounds offer better low-temperature properties but are more prone to hardening with high
temperatures. Peroxide-cured nitriles have better heat resistance and lower compression sets but are more expensive and more difficult to process.

Temperature Range:

Standard Low Temp: -40&degC (-40&degF)
Standard High Temp: 100&degC (212&degF)