Oring Cad
AS568-455 Buna-N 70 Duro Black FDA O-Ring for 13 ID X 1/4 CS

Buna-N O-Rings 70 Duro Black FDA BN700101-455

$ 15.15 per Each
Minimum Order Quantity (MOQ): 3
Out of stock

Material Buna-N
Cross Sectional Shape Round
Hardness 70
Dash 455
Fractional
  • ID: 13
  • CS: 1/4
  • OD: 13-1/2
Actual (Inch)
  • ID: 12.975 ± 0.060
  • CS: 0.275 ± 0.006
  • OD: 13.525
Actual (Metric)
  • ID: 329.57 ± 1.52
  • CS: 6.99 ± 0.15
  • OD: 343.550

FDA-approved Buna-N (Nitrile) O-rings are made from a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene, specially formulated to meet the Food and Drug Administration (FDA) requirements for food contact applications. These O-rings offer excellent resistance to oils, fuels, and many chemicals while being compliant with FDA regulations for safe use in food processing, pharmaceutical, and medical industries. FDA Buna-N O-rings provide high mechanical strength, outstanding wear resistance, and good tensile strength, making them ideal for sanitary applications.

FDA Buna-N Recommended Uses

Seals and gaskets for food and beverage processing, pharmaceutical applications, medical devices, sanitary sealing applications, food handling equipment, and laboratory applications.

FDA Buna-N Not Recommended

Brake fluid, ozone, UV exposure, phosphate esters, chlorinated hydrocarbons, aromatic hydrocarbons, ketones, strong acids, atmospheric aging.

FDA Buna-N Limitations

  • Not suitable for ozone, sunlight, or weathering exposure.
  • Limited performance in high-temperature environments.
  • Not ideal for strong acids and alkalis.
  • Not recommended for applications requiring low compression set.
FDA Buna-N Usable Temperature Range

-30 to 250°F (-34 to 121°C)

FDA Buna-N Also Known As

FDA Buna-N, Nitrile, NBR, Nitrile Butadiene Rubber (FDA Compliant).