Precision Associates, Inc.
Precision Associates, Inc.
3800 North Washington Ave.
Minneapolis, MN 55412-2142
Toll Free: 1-800-394-6590
Local: +1 612-333-7464
Sales: +1 612-334-9190
Fax: 612-342-2417
Email: [email protected]
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PAI Kurv-Bak™ hard rubber back-up rings can be made in a variety of materials to help prevent early seal failure at higher pressures.
Kurv-Baks
Unit of Measure
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Item #

Nominal C/S (inches)

Nominal I.D. (inches)

Nominal O.D. (inches)

Thickness (Inches)

I.D. (inches)

O.D. (Inches)

888-138 N/A 3/32 N/A 2 1/8 N/A 2 5/16 N/A .053 N/A 2.143 N/A 2.315
888-139 N/A 3/32 N/A 2 3/16 N/A 2 3/8 N/A .053 N/A 2.206 N/A 2.378
888-140 N/A 3/32 N/A 2 1/4 N/A 2 7/16 N/A .053 N/A 2.268 N/A 2.440
888-142 N/A 3/32 N/A 2 3/8 N/A 2 9/16 N/A .053 N/A 2.393 N/A 2.565
888-143 N/A 3/32 N/A 2 7/16 N/A 2 5/8 N/A .053 N/A 2.456 N/A 2.628
888-144 N/A 3/32 N/A 2 1/2 N/A 2 11/16 N/A .053 N/A 2.518 N/A 2.690
888-145 N/A 3/32 N/A 2 9/16 N/A 2 3/4 N/A .053 N/A 2.581 N/A 2.753
888-146 N/A 3/32 N/A 2 5/8 N/A 2 13/16 N/A .053 N/A 2.643 N/A 2.815
888-147 N/A 3/32 N/A 2 11/16 N/A 2 7/8 N/A .053 N/A 2.706 N/A 2.878
888-148 N/A 3/32 N/A 2 3/4 N/A 2 15/16 N/A .053 N/A 2.768 N/A 2.940
888-149 N/A 3/32 N/A 2 13/16 N/A 3 N/A .053 N/A 2.831 N/A 3.003
888-150 N/A 3/32 N/A 2 7/8 N/A 3 1/16 N/A .053 N/A 2.893 N/A 3.065
888-151 N/A 3/32 N/A 3 N/A 3 3/16 N/A .053 N/A 3.018 N/A 3.190
888-152 N/A 3/32 N/A 3 1/4 N/A 3 7/16 N/A .053 N/A 3.268 N/A 3.440
888-153 N/A 3/32 N/A 3 1/2 N/A 3 11/16 N/A .053 N/A 3.518 N/A 3.690
888-154 N/A 3/32 N/A 3 3/4 N/A 3 15/16 N/A .053 N/A 3.768 N/A 3.940
888-155 N/A 3/32 N/A 4 N/A 4 3/16 N/A .053 N/A 4.018 N/A 4.190
888-156 N/A 3/32 N/A 4 1/4 N/A 4 7/16 N/A .053 N/A 4.268 N/A 4.440
888-158 N/A 3/32 N/A 4 3/4 N/A 4 15/16 N/A .053 N/A 4.768 N/A 4.940
888-157 N/A 3/32 N/A 4.5 N/A 4 11/16 N/A .053 N/A 4.518 N/A 4.690
888-159 N/A 3/32 N/A 5 N/A 5 3/16 N/A .053 N/A 5.018 N/A 5.190
888-161 N/A 3/32 N/A 5 1/2 N/A 5 11/16 N/A .053 N/A 5.518 N/A 5.690
888-162 N/A 3/32 N/A 5 3/4 N/A 5 15/16 N/A .053 N/A 5.768 N/A 5.940
888-163 N/A 3/32 N/A 6 N/A 6 3/16 N/A .053 N/A 6.018 N/A 6.190
888-164 N/A 3/32 N/A 6 1/4 N/A 6 7/16 N/A .053 N/A 6.268 N/A 6.440
Unit of Measure
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