• Nitrile Back-Up Rings
90 Durometer Nitrile 'Parback®' style back up for o-ring.

Other materials available include hytrel, urethane, and PTFE, please contact us for more information.
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N/A 2-1/2 Inch (in) Inside Diameter, 2-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2-1/2 in N/A 2-3/4 in N/A 1/8 in {} Add To Cart
N/A 2-5/8 Inch (in) Inside Diameter, 2-7/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2-5/8 in N/A 2-7/8 in N/A 1/8 in {} Add To Cart
N/A 2-3/4 Inch (in) Inside Diameter, 3 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2-3/4 in N/A 3 in N/A 1/8 in {} Add To Cart
N/A 2-7/8 Inch (in) Inside Diameter, 3-1/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2-7/8 in N/A 3-1/8 in N/A 1/8 in {} Add To Cart
N/A 3 Inch (in) Inside Diameter, 3-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3 in N/A 3-1/4 in N/A 1/8 in {} Add To Cart
N/A 3-1/8 Inch (in) Inside Diameter, 3-3/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3-1/8 in N/A 3-3/8 in N/A 1/8 in {} Add To Cart
N/A 3-1/4 Inch (in) Inside Diameter, 3-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3-1/4 in N/A 3-1/2 in N/A 1/8 in {} Add To Cart
N/A 3-3/8 Inch (in) Inside Diameter, 3-5/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3-3/8 in N/A 3-5/8 in N/A 1/8 in {} Add To Cart
N/A 3-1/2 Inch (in) Inside Diameter, 3-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3-1/2 in N/A 3-3/4 in N/A 1/8 in {} Add To Cart
N/A 3-5/8 Inch (in) Inside Diameter, 3-7/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3-5/8 in N/A 3-7/8 in N/A 1/8 in {} Add To Cart
N/A 3-3/4 Inch (in) Inside Diameter, 4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3-3/4 in N/A 4 in N/A 1/8 in {} Add To Cart
N/A 3-7/8 Inch (in) Inside Diameter, 4-1/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3-7/8 in N/A 4-1/8 in N/A 1/8 in {} Add To Cart
N/A 4 Inch (in) Inside Diameter, 4-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4 in N/A 4-1/4 in N/A 1/8 in {} Add To Cart
N/A 4-1/8 Inch (in) Inside Diameter, 4-3/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4-1/8 in N/A 4-3/8 in N/A 1/8 in {} Add To Cart
N/A 4-1/4 Inch (in) Inside Diameter, 4-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4-1/4 in N/A 4-1/2 in N/A 1/8 in {} Add To Cart
N/A 4-3/8 Inch (in) Inside Diameter, 4-5/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4-3/8 in N/A 4-5/8 in N/A 1/8 in {} Add To Cart
N/A 4-1/2 Inch (in) Inside Diameter, 4-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4-1/2 in N/A 4-3/4 in N/A 1/8 in {} Add To Cart
N/A 4-5/8 Inch (in) Inside Diameter, 4-7/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4-5/8 in N/A 4-7/8 in N/A 1/8 in {} Add To Cart
N/A 4-3/4 Inch (in) Inside Diameter, 5 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4-3/4 in N/A 5 in N/A 1/8 in {} Add To Cart
N/A 4-7/8 Inch (in) Inside Diameter, 5-1/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 4-7/8 in N/A 5-1/8 in N/A 1/8 in {} Add To Cart
N/A 5 Inch (in) Inside Diameter, 5-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 5 in N/A 5-1/4 in N/A 1/8 in {} Add To Cart
N/A 5-1/8 Inch (in) Inside Diameter, 5-3/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 5-1/8 in N/A 5-3/8 in N/A 1/8 in {} Add To Cart
N/A 5-1/4 Inch (in) Inside Diameter, 5-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 5-1/4 in N/A 5-1/2 in N/A 1/8 in {} Add To Cart
N/A 5-3/8 Inch (in) Inside Diameter, 5-5/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 5-3/8 in N/A 5-5/8 in N/A 1/8 in {} Add To Cart
N/A 5-1/2 Inch (in) Inside Diameter, 5-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 5-1/2 in N/A 5-3/4 in N/A 1/8 in {} Add To Cart
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