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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18-255 N90A /Asset/N90-BU.jpg | N/A 5-5/8 Inch (in) Inside Diameter, 5-7/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 5-5/8 in | Outside Diameter N/A 5-7/8 in | Width N/A 1/8 in | {} |
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18-256 N90A /Asset/N90-BU.jpg | N/A 5-3/4 Inch (in) Inside Diameter, 6 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 5-3/4 in | Outside Diameter N/A 6 in | Width N/A 1/8 in | {} |
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18-257 N90A /Asset/N90-BU.jpg | N/A 5-7/8 Inch (in) Inside Diameter, 6-1/8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 5-7/8 in | Outside Diameter N/A 6-1/8 in | Width N/A 1/8 in | {} |
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18-258 N90A /Asset/N90-BU.jpg | N/A 6 Inch (in) Inside Diameter, 6-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 6 in | Outside Diameter N/A 6-1/4 in | Width N/A 1/8 in | {} |
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18-259 N90A /Asset/N90-BU.jpg | N/A 6-1/4 Inch (in) Inside Diameter, 6-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 6-1/4 in | Outside Diameter N/A 6-1/2 in | Width N/A 1/8 in | {} |
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18-260 N90A /Asset/N90-BU.jpg | N/A 6-1/2 Inch (in) Inside Diameter, 6-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 6-1/2 in | Outside Diameter N/A 6-3/4 in | Width N/A 1/8 in | {} |
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18-261 N90A /Asset/N90-BU.jpg | N/A 6-3/4 Inch (in) Inside Diameter, 7 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 6-3/4 in | Outside Diameter N/A 7 in | Width N/A 1/8 in | {} |
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18-262 N90A /Asset/N90-BU.jpg | N/A 7 Inch (in) Inside Diameter, 7-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7 in | Outside Diameter N/A 7-1/4 in | Width N/A 1/8 in | {} |
Add To Cart
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18-263 N90A /Asset/N90-BU.jpg | N/A 7-1/4 Inch (in) Inside Diameter, 7-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7-1/4 in | Outside Diameter N/A 7-1/2 in | Width N/A 1/8 in | {} |
Add To Cart
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18-264 N90A /Asset/N90-BU.jpg | N/A 7-1/2 Inch (in) Inside Diameter, 7-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7-1/2 in | Outside Diameter N/A 7-3/4 in | Width N/A 1/8 in | {} |
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18-265 N90A /Asset/N90-BU.jpg | N/A 7-3/4 Inch (in) Inside Diameter, 8 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 7-3/4 in | Outside Diameter N/A 8 in | Width N/A 1/8 in | {} |
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18-266 N90A /Asset/N90-BU.jpg | N/A 8 Inch (in) Inside Diameter, 8-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 8 in | Outside Diameter N/A 8-1/4 in | Width N/A 1/8 in | {} |
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18-267 N90A /Asset/N90-BU.jpg | N/A 8-1/4 Inch (in) Inside Diameter, 8-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 8-1/4 in | Outside Diameter N/A 8-1/2 in | Width N/A 1/8 in | {} |
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18-268 N90A /Asset/N90-BU.jpg | N/A 8-1/2 Inch (in) Inside Diameter, 8-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 8-1/2 in | Outside Diameter N/A 8-3/4 in | Width N/A 1/8 in | {} |
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18-269 N90A /Asset/N90-BU.jpg | N/A 8-3/4 Inch (in) Inside Diameter, 9 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 8-3/4 in | Outside Diameter N/A 9 in | Width N/A 1/8 in | {} |
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18-270 N90A /Asset/N90-BU.jpg | N/A 9 Inch (in) Inside Diameter, 9-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 9 in | Outside Diameter N/A 9-1/4 in | Width N/A 1/8 in | {} |
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18-271 N90A /Asset/N90-BU.jpg | N/A 9-1/4 Inch (in) Inside Diameter, 9-1/2 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 9-1/4 in | Outside Diameter N/A 9-1/2 in | Width N/A 1/8 in | {} |
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18-272 N90A /Asset/N90-BU.jpg | N/A 9-1/2 Inch (in) Inside Diameter, 9-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 9-1/2 in | Outside Diameter N/A 9-3/4 in | Width N/A 1/8 in | {} |
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18-273 N90A /Asset/N90-BU.jpg | N/A 9-3/4 Inch (in) Inside Diameter, 10 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 9-3/4 in | Outside Diameter N/A 10 in | Width N/A 1/8 in | {} |
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18-274 N90A /Asset/N90-BU.jpg | N/A 10 Inch (in) Inside Diameter, 10-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 10 in | Outside Diameter N/A 10-1/4 in | Width N/A 1/8 in | {} |
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18-275 N90A /Asset/N90-BU.jpg | N/A 10-1/2 Inch (in) Inside Diameter, 10-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 10-1/2 in | Outside Diameter N/A 10-3/4 in | Width N/A 1/8 in | {} |
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18-276 N90A /Asset/N90-BU.jpg | N/A 11 Inch (in) Inside Diameter, 11-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 11 in | Outside Diameter N/A 11-1/4 in | Width N/A 1/8 in | {} |
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18-277 N90A /Asset/N90-BU.jpg | N/A 11-1/2 Inch (in) Inside Diameter, 11-3/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 11-1/2 in | Outside Diameter N/A 11-3/4 in | Width N/A 1/8 in | {} |
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18-278 N90A /Asset/N90-BU.jpg | N/A 12 Inch (in) Inside Diameter, 12-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 12 in | Outside Diameter N/A 12-1/4 in | Width N/A 1/8 in | {} |
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18-279 N90A /Asset/N90-BU.jpg | N/A 13 Inch (in) Inside Diameter, 13-1/4 Inch (in) Outside Diameter, and 1/8 Inch (in) Width Nitrile Back-Up Ring | Inside Diameter N/A 13 in | Outside Diameter N/A 13-1/4 in | Width N/A 1/8 in | {} |
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