C70904

904 O-RING NEOPRENE
70 DUROMETER BLACK
CS: .072″ (1.83MM)
ID: .351″ (8.92MM)

C70904

Quantity Pricing (ea)
  • 1 for $0.14
  • 600 for $0.12
  • 3000 for $0.11
  • 6000 for $0.096
  • 12000 for $0.082
Stock & Availability (ea)
In Stock: 7,236
Inbound Stock: 0
Offsite Stock: 74,984 ($50 Line Min)
Expedited Shipping*: 06/15/2026
Standard Shipping: 09/02/2026
New Production: Unlimited ($250 Line Min)
Expedited Shipping*: 08/10/2026
Standard Shipping: 10/28/2026
*Add your desired qty and click ADD TO CART to see expedite fees and options.

Interchange Part Numbers

  • MCMASTER-CARR 94115K479

Additional information

Weight 0.00029 lbs
Shipping Dimensions 0.495 × 0.495 × 0.072 in
Material

Color

Size

904
Durometer

Minimum Temperature -40
Maximum Temperature 212

Description

SPEC SHEET: Chloroprene Rubber (CR) 70 Durometer.pdf

Chloroprene Rubber (CR)

Material Description

Chloroprene (CR), also known by its trade name “Neoprene”, was one of the first successful synthetic elastomers in 1931 made by Dupont. It is prepared by emulsion polymerization of chloroprene, or 2-chlorobutadiene. CR is a multi-purposed elastomer which yields a balanced combination of properties. It performs well in contact with oils and many chemicals and has good resistance to sun, ozone and weather. It also displays outstanding toughness and good resistance to fire.

Cure system: Sulfur-cured

Standard CRs are metal oxides and organic accelerators.

Temperature Range:

Standard Low Temp: -40°C (-40°F)

Standard High Temp: 100°C (212°F)