Solid Backup Ring 4.250" x 4.437" x 0.040" - Polyurethane

Product Details : Solid Backup Ring 4.250" x 4.437" x 0.040" - Polyurethane

• Part No: 8-156/U
• Product Category: O-Rings
• Product Type: Solid Backup Ring
• Series: -XXX/U
• Dash No.: -156
• Material(s): Polyurethane
• Material Code: AU
• Durometer: 95A
• Temperature Range: -60°F to +250°F (-51°C to +121°C)
• Surface Speed: < 1.6 ft/s (0.5 m/s)
• System Of Measurement: Inch
• Dimensions: 4.250" x 4.437" x 0.040"
• Nominal I.D.: 4.250"
• Nominal O.D.: 4.437"
• Nominal Width (W): 0.093"
• Actual Thickness (T): 0.040"
• Actual Width (W): 0.086"
• Details:
  •Back-Up Rings are predominantly used in conjunction with O-rings for both static and dynamic sealing applications
  •They prevent the O-ring from extruding when it is subjected to high pressures, or when clearance gaps are excessive

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*Photos for reference purposes only.