Kurv-Bak™ Molded Hard Rubber Back-Up Rings.

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.

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Unit of Measure

Items	888-005 7/64 inch Nominal I.D. and 15/64 inch Nominal O.D. Kurv-Bak	888-006 1/8 inch Nominal I.D. and 1/4 inch Nominal O.D. Kurv-Bak	888-007 5/32 inch Nominal I.D. and 9/32 inch Nominal O.D. Kurv-Bak	888-008 3/16 inch Nominal I.D. and 5/16 inch Nominal O.D. Kurv-Bak	888-009 7/32 inch Nominal I.D. and 11/32 inch Nominal O.D. Kurv-Bak
Nominal C/S (inches)	N/A 1/16
I.D. (inches)	N/A 0.127	N/A 0.140	N/A 0.171	N/A 0.202	N/A 0.234
O.D. (Inches)	N/A .233	N/A .246	N/A .277	N/A .308	N/A .340