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)

888-166 N/A 3/32 N/A 6 3/4 N/A 6 15/16 N/A .053 N/A 6.768 N/A 6.940
888-167 N/A 3/32 N/A 7 N/A 7 3/16 N/A .053 N/A 7.018 N/A 7.190
888-168 N/A 3/32 N/A 7 1/4 N/A 7 7/16 N/A .053 N/A 7.268 N/A 7.440
888-201 N/A 1/8 N/A 3/16 N/A 7/16 N/A .050 N/A 0.202 N/A .438
888-202 N/A 1/8 N/A 1/4 N/A 1/2 N/A .050 N/A 0.265 N/A .501
888-203 N/A 1/8 N/A 5/16 N/A 9/16 N/A .050 N/A 0.327 N/A .563
888-204 N/A 1/8 N/A 3/8 N/A 5/8 N/A .050 N/A 0.390 N/A .626
888-205 N/A 1/8 N/A 7/16 N/A 11/16 N/A .050 N/A 0.455 N/A .691
888-206 N/A 1/8 N/A 1/2 N/A 3/4 N/A .050 N/A .518 N/A .754
888-207 N/A 1/8 N/A 9/16 N/A 13/16 N/A .050 N/A 0.580 N/A .816
888-208 N/A 1/8 N/A 5/8 N/A 7/8 N/A .050 N/A 0.643 N/A .879
888-209 N/A 1/8 N/A 11/16 N/A 15/16 N/A .050 N/A 0.705 N/A .941
888-210 N/A 1/8 N/A 3/4 N/A 1 N/A .050 N/A .766 N/A 1.002
888-211 N/A 1/8 N/A 13/16 N/A 1 1/16 N/A .050 N/A .828 N/A 1.064
888-212 N/A 1/8 N/A 7/8 N/A 1 1/8 N/A .050 N/A .891 N/A 1.127
888-213 N/A 1/8 N/A 15/16 N/A 1 3/16 N/A .050 N/A 0.953 N/A 1.189
888-214 N/A 1/8 N/A 1 N/A 1 1/4 N/A .050 N/A 1.016 N/A 1.252
888-215 N/A 1/8 N/A 1 1/16 N/A 1 5/16 N/A .050 N/A 1.078 N/A 1.314
888-216 N/A 1/8 N/A 1 1/8 N/A 1 3/8 N/A .050 N/A 1.141 N/A 1.377
888-217 N/A 1/8 N/A 1 3/16 N/A 1 7/16 N/A .050 N/A 1.203 N/A 1.439
888-218 N/A 1/8 N/A 1 1/4 N/A 1 1/2 N/A .050 N/A 1.266 N/A 1.502
888-219 N/A 1/8 N/A 1 5/16 N/A 1 9/16 N/A .050 N/A 1.334 N/A 1.570
888-220 N/A 1/8 N/A 1 3/8 N/A 1 5/8 N/A .050 N/A 1.397 N/A 1.633
888-221 N/A 1/8 N/A 1 7/16 N/A 1 11/16 N/A .050 N/A 1.459 N/A 1.695
888-222 N/A 1/8 N/A 1 1/2 N/A 1 3/4 N/A .050 N/A 1.522 N/A 1.758
Unit of Measure
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