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90 Durometer Nitrile 'ParbackĀ®' style back up for o-ring.

Other materials available include hytrel, urethane, and PTFE, please contact us for more information.
Nitrile Back-Up Rings
Unit of Measure
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Item #

Item Description

Inside Diameter

Outside Diameter

Width

List Price

18-205 N90A N/A 7/16 Inch (in) Inside Diameter, 11/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 7/16 in N/A 11/16 in N/A 1/8 in {}
18-206 N90A N/A 1/2 Inch (in) Inside Diameter, 3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1/2 in N/A 3/4 in N/A 1/8 in {}
18-207 N90A N/A 9/16 Inch (in) Inside Diameter, 13/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 9/16 in N/A 13/16 in N/A 1/8 in {}
18-208 N90A N/A 5/8 Inch (in) Inside Diameter, 7/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 5/8 in N/A 7/8 in N/A 1/8 in {}
18-209 N90A N/A 11/16 Inch (in) Inside Diameter, 15/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 11/16 in N/A 15/16 in N/A 1/8 in {}
18-210 N90A N/A 3/4 Inch (in) Inside Diameter, 1 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 3/4 in N/A 1 in N/A 1/8 in {}
18-211 N90A N/A 13/16 Inch (in) Inside Diameter, 1-1/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 13/16 in N/A 1-1/16 in N/A 1/8 in {}
18-212 N90A N/A 7/8 Inch (in) Inside Diameter, 1-1/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 7/8 in N/A 1-1/8 in N/A 1/8 in {}
18-213 N90A N/A 15/16 Inch (in) Inside Diameter, 1-3/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 15/16 in N/A 1-3/16 in N/A 1/8 in {}
18-214 N90A N/A 1 Inch (in) Inside Diameter, 1-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1 in N/A 1-1/4 in N/A 1/8 in {}
18-215 N90A N/A 1-1/16 Inch (in) Inside Diameter, 1-5/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-1/16 in N/A 1-5/16 in N/A 1/8 in {}
18-216 N90A N/A 1-1/8 Inch (in) Inside Diameter, 1-3/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-1/8 in N/A 1-3/8 in N/A 1/8 in {}
18-217 N90A N/A 1-3/16 Inch (in) Inside Diameter, 1-7/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-3/16 in N/A 1-7/16 in N/A 1/8 in {}
18-218 N90A N/A 1-1/4 Inch (in) Inside Diameter, 1-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-1/4 in N/A 1-1/2 in N/A 1/8 in {}
18-219 N90A N/A 1-5/16 Inch (in) Inside Diameter, 1-9/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-5/16 in N/A 1-9/16 in N/A 1/8 in {}
18-220 N90A N/A 1-3/8 Inch (in) Inside Diameter, 1-5/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-3/8 in N/A 1-5/8 in N/A 1/8 in {}
18-221 N90A N/A 1-7/16 Inch (in) Inside Diameter, 1-11/16 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-7/16 in N/A 1-11/16 in N/A 1/8 in {}
18-222 N90A N/A 1-1/2 Inch (in) Inside Diameter, 1-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-1/2 in N/A 1-3/4 in N/A 1/8 in {}
18-223 N90A N/A 1-5/8 Inch (in) Inside Diameter, 1-7/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-5/8 in N/A 1-7/8 in N/A 1/8 in {}
18-224 N90A N/A 1-3/4 Inch (in) Inside Diameter, 2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-3/4 in N/A 2 in N/A 1/8 in {}
18-225 N90A N/A 1-7/8 Inch (in) Inside Diameter, 2-1/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 1-7/8 in N/A 2-1/8 in N/A 1/8 in {}
18-226 N90A N/A 2 Inch (in) Inside Diameter, 2-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2 in N/A 2-1/4 in N/A 1/8 in {}
18-227 N90A N/A 2-1/16 Inch (in) Inside Diameter, 2-3/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2-1/16 in N/A 2-3/8 in N/A 1/8 in {}
18-228 N90A N/A 2-1/4 Inch (in) Inside Diameter, 2-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2-1/4 in N/A 2-1/2 in N/A 1/8 in {}
18-229 N90A N/A 2-3/8 Inch (in) Inside Diameter, 2-5/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring N/A 2-3/8 in N/A 2-5/8 in N/A 1/8 in {}
Unit of Measure
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