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

18-379 N90A N/A 11 Inch (in) Inside Diameter, 11-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 11 in N/A 11-3/8 in N/A 3/16 in {}
18-380 N90A N/A 11-1/2 Inch (in) Inside Diameter, 11-7/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 11-1/2 in N/A 11-7/8 in N/A 3/16 in {}
18-381 N90A N/A 12 Inch (in) Inside Diameter, 12-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 12 in N/A 12-3/8 in N/A 3/16 in {}
18-382 N90A N/A 13 Inch (in) Inside Diameter, 13-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 13 in N/A 13-3/8 in N/A 3/16 in {}
18-383 N90A N/A 14 Inch (in) Inside Diameter, 14-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 14 in N/A 14-3/8 in N/A 3/16 in {}
18-384 N90A N/A 15 Inch (in) Inside Diameter, 15-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 15 in N/A 15-3/8 in N/A 3/16 in {}
18-385 N90A N/A 16 Inch (in) Inside Diameter, 16-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 16 in N/A 16-3/8 in N/A 3/16 in {}
18-386 N90A N/A 17 Inch (in) Inside Diameter, 17-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 17 in N/A 17-3/8 in N/A 3/16 in {}
18-387 N90A N/A 18 Inch (in) Inside Diameter, 18-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 18 in N/A 18-3/8 in N/A 3/16 in {}
18-389 N90A N/A 20 Inch (in) Inside Diameter, 20-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 20 in N/A 20-3/8 in N/A 3/16 in {}
18-392 N90A N/A 23 Inch (in) Inside Diameter, 23-3/8 Inch (in) Outside Diameter, and 3/16 Inch (in) Width Nitrile Back-Up Ring N/A 23 in N/A 23-3/8 in N/A 3/16 in {}
18-425 N90A N/A 4-1/2 Inch (in) Inside Diameter, 5 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 4-1/2 in N/A 5 in N/A 1/4 in {}
18-426 N90A N/A 4-5/8 Inch (in) Inside Diameter, 5-1/8 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 4-5/8 in N/A 5-1/8 in N/A 1/4 in {}
18-427 N90A N/A 4-3/4 Inch (in) Inside Diameter, 5-1/4 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 4-3/4 in N/A 5-1/4 in N/A 1/4 in {}
18-428 N90A N/A 4-7/8 Inch (in) Inside Diameter, 5-3/8 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 4-7/8 in N/A 5-3/8 in N/A 1/4 in {}
18-429 N90A N/A 5 Inch (in) Inside Diameter, 5-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5 in N/A 5-1/2 in N/A 1/4 in {}
18-430 N90A N/A 5-1/8 Inch (in) Inside Diameter, 5-5/8 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5-1/8 in N/A 5-5/8 in N/A 1/4 in {}
18-431 N90A N/A 5-1/4 Inch (in) Inside Diameter, 5-3/4 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5-1/4 in N/A 5-3/4 in N/A 1/4 in {}
18-432 N90A N/A 5-3/8 Inch (in) Inside Diameter, 5-7/8 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5-3/8 in N/A 5-7/8 in N/A 1/4 in {}
18-433 N90A N/A 5-1/2 Inch (in) Inside Diameter, 6 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5-1/2 in N/A 6 in N/A 1/4 in {}
18-434 N90A N/A 5-5/8 Inch (in) Inside Diameter, 6-1/8 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5-5/8 in N/A 6-1/8 in N/A 1/4 in {}
18-435 N90A N/A 5-3/4 Inch (in) Inside Diameter, 6-1/4 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5-3/4 in N/A 6-1/4 in N/A 1/4 in {}
18-436 N90A N/A 5-7/8 Inch (in) Inside Diameter, 6-3/8 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 5-7/8 in N/A 6-3/8 in N/A 1/4 in {}
18-437 N90A N/A 6 Inch (in) Inside Diameter, 6-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 6 in N/A 6-1/2 in N/A 1/4 in {}
18-438 N90A N/A 6-1/4 Inch (in) Inside Diameter, 6-3/4 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring N/A 6-1/4 in N/A 6-3/4 in N/A 1/4 in {}
Unit of Measure
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