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.
Unit of Measure

Item #

Nominal C/S (inches)

Nominal I.D. (inches)

Nominal O.D. (inches)

Thickness (Inches)

I.D. (inches)

O.D. (Inches)

888-005 N/A 1/16 N/A 7/64 N/A 15/64 N/A .049 N/A .127 N/A .233
888-006 N/A 1/16 N/A 1/8 N/A 1/4 N/A .049 N/A .140 N/A .246
888-007 N/A 1/16 N/A 5/32 N/A 9/32 N/A .049 N/A .171 N/A .277
888-008 N/A 1/16 N/A 3/16 N/A 5/16 N/A .049 N/A .202 N/A .308
888-009 N/A 1/16 N/A 7/32 N/A 11/32 N/A .049 N/A .234 N/A .340
888-010 N/A 1/16 N/A 1/4 N/A 3/8 N/A .049 N/A .265 N/A .371
888-011 N/A 1/16 N/A 5/16 N/A 7/16 N/A .049 N/A .327 N/A .433
888-012 N/A 1/16 N/A 3/8 N/A 1/2 N/A .049 N/A .390 N/A .496
888-013 N/A 1/16 N/A 7/16 N/A 9/16 N/A .049 N/A .455 N/A .561
888-014 N/A 1/16 N/A 1/2 N/A 5/8 N/A .049 N/A .518 N/A .624
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