AS568-326 Buna-N 70 Duro Black FDA O-Ring for 1-5/8 ID X 3/16 CS

Buna-N O-Rings 70 Duro Black FDA BN700101-326

$ 0.755 per Each

Minimum Order Quantity (MOQ): 75

Out of stock

Material	Buna-N
Cross Sectional Shape	Round
Hardness	70
Dash	326
Fractional	ID: 1-5/8 CS: 3/16 OD: 2
Actual (Inch)	ID: 1.600 ± 0.015 CS: 0.210 ± 0.005 OD: 2.020
Actual (Metric)	ID: 40.64 ± 0.38 CS: 5.33 ± 0.13 OD: 51.300

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).