Nitrile Back-Up Rings
All Categories
90 Durometer Nitrile 'Parback®' style back up for o-ring.
Other materials available include hytrel, urethane, and PTFE, please contact us for more information.
Other materials available include hytrel, urethane, and PTFE, please contact us for more information.
Item # |
Item Description |
Inside Diameter |
Outside Diameter |
Width |
List Price |
Add To Cart/Request Quote |
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18-439 N90A /Asset/N90-BU.jpg | N/A 6-1/2 Inch (in) Inside Diameter, 7 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 6-1/2 in | Outside Diameter N/A 7 in | Width N/A 1/4 in | {} |
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18-440 N90A /Asset/N90-BU.jpg | N/A 6-3/4 Inch (in) Inside Diameter, 7-1/4 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 6-3/4 in | Outside Diameter N/A 7-1/4 in | Width N/A 1/4 in | {} |
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18-441 N90A /Asset/N90-BU.jpg | N/A 7 Inch (in) Inside Diameter, 7-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7 in | Outside Diameter N/A 7-1/2 in | Width N/A 1/4 in | {} |
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18-442 N90A /Asset/N90-BU.jpg | N/A 7-1/4 Inch (in) Inside Diameter, 7-3/4 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7-1/4 in | Outside Diameter N/A 7-3/4 in | Width N/A 1/4 in | {} |
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18-443 N90A /Asset/N90-BU.jpg | N/A 7-1/2 Inch (in) Inside Diameter, 8 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7-1/2 in | Outside Diameter N/A 8 in | Width N/A 1/4 in | {} |
Add To Cart
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18-444 N90A /Asset/N90-BU.jpg | N/A 7-3/4 Inch (in) Inside Diameter, 8-1/4 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7-3/4 in | Outside Diameter N/A 8-1/4 in | Width N/A 1/4 in | {} |
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18-445 N90A /Asset/N90-BU.jpg | N/A 8 Inch (in) Inside Diameter, 8-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 8 in | Outside Diameter N/A 8-1/2 in | Width N/A 1/4 in | {} |
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18-446 N90A /Asset/N90-BU.jpg | N/A 8-1/2 Inch (in) Inside Diameter, 9 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 8-1/2 in | Outside Diameter N/A 9 in | Width N/A 1/4 in | {} |
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18-447 N90A /Asset/N90-BU.jpg | N/A 9 Inch (in) Inside Diameter, 9-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 9 in | Outside Diameter N/A 9-1/2 in | Width N/A 1/4 in | {} |
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18-448 N90A /Asset/N90-BU.jpg | N/A 9-1/2 Inch (in) Inside Diameter, 10 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 9-1/2 in | Outside Diameter N/A 10 in | Width N/A 1/4 in | {} |
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18-449 N90A /Asset/N90-BU.jpg | N/A 10 Inch (in) Inside Diameter, 10-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 10 in | Outside Diameter N/A 10-1/2 in | Width N/A 1/4 in | {} |
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18-450 N90A /Asset/N90-BU.jpg | N/A 10-1/2 Inch (in) Inside Diameter, 11 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 10-1/2 in | Outside Diameter N/A 11 in | Width N/A 1/4 in | {} |
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18-451 N90A /Asset/N90-BU.jpg | N/A 11 Inch (in) Inside Diameter, 11-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 11 in | Outside Diameter N/A 11-1/2 in | Width N/A 1/4 in | {} |
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18-452 N90A /Asset/N90-BU.jpg | N/A 11-1/2 Inch (in) Inside Diameter, 12 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 11-1/2 in | Outside Diameter N/A 12 in | Width N/A 1/4 in | {} |
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18-453 N90A /Asset/N90-BU.jpg | N/A 12 Inch (in) Inside Diameter, 12-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 12 in | Outside Diameter N/A 12-1/2 in | Width N/A 1/4 in | {} |
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18-454 N90A /Asset/N90-BU.jpg | N/A 12-1/2 Inch (in) Inside Diameter, 13 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 12-1/2 in | Outside Diameter N/A 13 in | Width N/A 1/4 in | {} |
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18-455 N90A /Asset/N90-BU.jpg | N/A 13 Inch (in) Inside Diameter, 13-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 13 in | Outside Diameter N/A 13-1/2 in | Width N/A 1/4 in | {} |
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18-456 N90A /Asset/N90-BU.jpg | N/A 13-1/2 Inch (in) Inside Diameter, 14 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 13-1/2 in | Outside Diameter N/A 14 in | Width N/A 1/4 in | {} |
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18-457 N90A /Asset/N90-BU.jpg | N/A 14 Inch (in) Inside Diameter, 14-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 14 in | Outside Diameter N/A 14-1/2 in | Width N/A 1/4 in | {} |
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18-458 N90A /Asset/N90-BU.jpg | N/A 14-1/2 Inch (in) Inside Diameter, 15 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 14-1/2 in | Outside Diameter N/A 15 in | Width N/A 1/4 in | {} |
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18-459 N90A /Asset/N90-BU.jpg | N/A 15 Inch (in) Inside Diameter, 15-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 15 in | Outside Diameter N/A 15-1/2 in | Width N/A 1/4 in | {} |
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18-460 N90A /Asset/N90-BU.jpg | N/A 15-1/2 Inch (in) Inside Diameter, 16 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 15-1/2 in | Outside Diameter N/A 16 in | Width N/A 1/4 in | {} |
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18-461 N90A /Asset/N90-BU.jpg | N/A 16 Inch (in) Inside Diameter, 16-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 16 in | Outside Diameter N/A 16-1/2 in | Width N/A 1/4 in | {} |
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18-462 N90A /Asset/N90-BU.jpg | N/A 16-1/2 Inch (in) Inside Diameter, 17 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 16-1/2 in | Outside Diameter N/A 17 in | Width N/A 1/4 in | {} |
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18-463 N90A /Asset/N90-BU.jpg | N/A 17 Inch (in) Inside Diameter, 17-1/2 Inch (in) Outside Diameter, and 1/4 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 17 in | Outside Diameter N/A 17-1/2 in | Width N/A 1/4 in | {} |
Add To Cart
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