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)

888-111 N/A 3/32 N/A 7/16 N/A 5/8 N/A .053 N/A 0.452 N/A .624
888-112 N/A 3/32 N/A 1/2 N/A 11/16 N/A .053 N/A 0.515 N/A .687
888-113 N/A 3/32 N/A 9/16 N/A 3/4 N/A .053 N/A 0.577 N/A .749
888-114 N/A 3/32 N/A 5/8 N/A 13/16 N/A .053 N/A 0.640 N/A .812
888-115 N/A 3/32 N/A 11/16 N/A 7/8 N/A .053 N/A 0.702 N/A .874
888-116 N/A 3/32 N/A 3/4 N/A 15/16 N/A .053 N/A 0.765 N/A .937
888-117 N/A 3/32 N/A 13/16 N/A 1 N/A .053 N/A .831 N/A 1.003
888-118 N/A 3/32 N/A 7/8 N/A 1 1/16 N/A .053 N/A 0.893 N/A 1.065
888-119 N/A 3/32 N/A 15/16 N/A 1 1/8 N/A .053 N/A .956 N/A 1.128
888-120 N/A 3/32 N/A 1 N/A 1 3/16 N/A .053 N/A 1.018 N/A 1.190
888-121 N/A 3/32 N/A 1 1/16 N/A 1 1/4 N/A .053 N/A 1.081 N/A 1.253
888-122 N/A 3/32 N/A 1 1/8 N/A 1 5/16 N/A .053 N/A 1.143 N/A 1.315
888-123 N/A 3/32 N/A 1 3/16 N/A 1 3/8 N/A .053 N/A 1.206 N/A 1.378
888-124 N/A 3/32 N/A 1 1/4 N/A 1 7/16 N/A .053 N/A 1.268 N/A 1.440
888-126 N/A 3/32 N/A 1 3/8 N/A 1 9/16 N/A .053 N/A 1.393 N/A 1.565
888-127 N/A 3/32 N/A 1 7/16 N/A 1 5/8 N/A .053 N/A 1.456 N/A 1.628
888-128 N/A 3/32 N/A 1 1/2 N/A 1 11/16 N/A .053 N/A 1.518 N/A 1.690
888-129 N/A 3/32 N/A 1 9/16 N/A 1 3/4 N/A .053 N/A 1.581 N/A 1.753
888-130 N/A 3/32 N/A 1 5/8 N/A 1 13/16 N/A .053 N/A 1.643 N/A 1.815
888-131 N/A 3/32 N/A 1 11/16 N/A 1 7/8 N/A .053 N/A 1.706 N/A 1.878
888-132 N/A 3/32 N/A 1 3/4 N/A 1 15/16 N/A .053 N/A 1.768 N/A 1.940
888-133 N/A 3/32 N/A 1 13/16 N/A 2 N/A .053 N/A 1.831 N/A 2.003
888-134 N/A 3/32 N/A 1 7/8 N/A 2 1/16 N/A .053 N/A 1.893 N/A 2.065
888-135 N/A 3/32 N/A 1 15/16 N/A 2 1/8 N/A .053 N/A 1.956 N/A 2.128
888-136 N/A 3/32 N/A 2 N/A 2 3/16 N/A .053 N/A 2.018 N/A 2.190
Unit of Measure
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