Pneu-Draulics, Inc
Pneu-Draulics, Inc
111 Brookside Drive
Nicholasville, Ky 40356
United States
Phone: 1-800-333-7325 (SEAL)
E-Mail: info@pneu-draulics.com
Website: www.pneu-draulics.com
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90 Durometer Nitrile 'Parback®' 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

18-230 N90A 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 {}
18-231 N90A 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 {}
18-232 N90A 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 {}
18-233 N90A 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 {}
18-234 N90A 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 {}
18-235 N90A 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 {}
18-236 N90A 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 {}
18-237 N90A 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 {}
18-238 N90A 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 {}
18-239 N90A 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 {}
18-240 N90A 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 {}
18-241 N90A 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 {}
18-242 N90A 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 {}
18-243 N90A 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 {}
18-244 N90A 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 {}
18-245 N90A 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 {}
18-246 N90A 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 {}
18-247 N90A 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 {}
18-248 N90A 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 {}
18-249 N90A 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 {}
18-250 N90A 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 {}
18-251 N90A 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 {}
18-252 N90A 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 {}
18-253 N90A 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 {}
18-254 N90A 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 {}
Unit of Measure
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