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Back-Up Ring Kit

Back-up rings kits are made with Buna 90, FKM or Teflon. Back-up rings are used to prevent the O-ring from entering the clearance gap. When high pressures are exerted on the O-ring, its soft rubber material can be forced into the clearance gap causing the O-ring to extrude. The hard Back-up ring material will keep the O-ring material from flowing into the gap which will prevent premature failure.



Image Model+ Item Name Qty. Price Quantity Discounts
OSK™ Back-up Rings Nitrile Duro 90 Kit 36-Sizes 293-Pieces K293X36B

OSK™ Back-up Rings Nitrile Duro 90 Kit 36-Sizes 293-Pieces

Contoured Back-up Ring Kit Contoured back-up rings are anti-extrusion devices, generally recommended when systemic pressure exceeds 1500 psi. The...
 0
$39.00

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Quantity Discounts
1-3$39.00
4-9$29.25
10+$19.50
OSK™ Industrial Solid PTFE Back-up Ring Kit 36-Sizes 325-Pieces K325X36TBU-S

OSK™ Industrial Solid PTFE Back-up Ring Kit 36-Sizes 325-Pieces

Polytetrafluoroethylene PTFE Solid Back-up Rings Kit Our Industrial PTFE Back-up Ring Kit is the industry standard. The kit contains a total of 325...
 1
$120.00

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Quantity Discounts
1-9$120.00
10-24$108.00
25+$90.00