Rocket Seals CorporationDenver, CO
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 Back-Up Rings, Contoured Buna -90, 8-series

Contoured Back-Up Rings - 8-Series Sizes and Dimensions. Material: 90A Buna-N Rubber Temperature Range: -40 To +240 F Pressure Range: Varies According to diametrical clearance Contoured Buna-N Back-Up rings provide excellent extrusion resistance. Stretched for installation, they return quickly to their original size for easy installation. Note: Back-up ring sizes correspond to Universal dash numbers, as per AS-568A O-Ring sizes.
 
   
 Back-Up Rings, Solid Teflon - PTFE - Style 27595

Back-Up rings, Solid Teflon - PTFE- Style 27595 Material: PTFE Temperature Range: -40 To +500 F Pressure Range: Varies according to diametrical clearance. Note: Some minimums may apply.
 
   
 Back-Up Rings, Split or Single Turn Teflon Style 28774


Back-Up rings, Split or Single Turn Teflon Style 28774 Material: PTFE Temperature Range: -40 To +500 F Pressure Range: Varies according to diametrical clearance. Note: Some minimums may apply. If you can’t find something you’re looking for, give us a call at 800-445-7803.
 
   
 Back-Up Rings, Spiral Cut Teflon Style 28782

Back-Up rings, Spiral cut Teflon Style 28782 Moderately simple to assemble. Spiral cut can be opened, for assembling over pistons or doubled over itself for assembly into a cylinder groove.
 
 

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