A back-up ring is a rigid ring that holds an elastomeric seal or plastic (such as Polyethylene) connection to its designed shape and in its correct place. Back up rings are commonly used with O-rings, lip seals, and as reciprocating shaft seals

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Item#:
BU-3000-3187-031-VEG

3 x 3.187 x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3 OD-3.187 HT-0.031
SPEC SHEET

Available:
23.00
Your Price:
7.94
Each
Item#:
BU-3000-3250-031-VEG

3 x 3.25 x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3 OD-3.25 HT-0.031
SPEC SHEET

Available:
7.00
Your Price:
7.95
Each
Item#:
BU-3000-3437-062-T

3 x 3.437 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3 OD-3.437 HT-0.062
SPEC SHEET

Available:
13.00
Your Price:
18.76
Each
Item#:
BU-3000-3500-062-T

3 x 3.5 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3 OD-3.5 HT-0.062
SPEC SHEET

Available:
28.00
Your Price:
21.69
Each
Item#:
BU-3000-3500-125-VEG

3 x 3.5 x 0.125 Vegetable Fiber Back Up Inch

Available:
1.00
Your Price:
8.64
Each
Item#:
BU-3000-3750-062-VEG

3 x 3.75 x 0.062 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3 OD-3.75 HT-0.062
SPEC SHEET

Available:
2.00
Your Price:
8.46
Each
Item#:
BU-3000-3750-093-H

3 x 3.75 x .093 55 Shore D Hytrel® U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: BU-T, BU-N

ID-3 OD-3.75 HT- .093 

Available:
15.00
Your Price:
9.80
Each
Item#:
BU-3125-3875-125-VEG

3.125 x 3.875 x 0.125 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3.125 OD-3.875 HT-0.125
SPEC SHEET

Available:
5.00
Your Price:
8.48
Each
Item#:
BU-3187-3750-075-N@1

3.187 x 3.75 x 0.075 Split Nylon Backup Ring for U-Cups - Ltd. Qty.

Available:
1.00
Your Price:
9.51
Each
Item#:
BU-3250-3500-031-VEG

3.25x 3.5x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3.25 OD-3.5 HT-0.031
SPEC SHEET

Available:
54.00
Your Price:
6.14
Each
Item#:
BU-3250-3750-062-T

3.25 x 3.75 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3.25 OD-3.75 HT-0.062
SPEC SHEET

Available:
17.00
Your Price:
23.10
Each
Item#:
BU-3250-3875-062-T

3.25 x 3.875 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3.25 OD-3.875 HT-0.062
SPEC SHEET

Available:
9.00
Your Price:
23.65
Each
Item#:
BU-3250-4000-031-VEG

3.25 x 4 x 0.031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3.25 OD-4 HT-0.031
SPEC SHEET

Available:
6.00
Your Price:
8.37
Each
Item#:
BU-3250-4000-062-VEG

3.25 x 4 x 0.062 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3.25 OD-4 HT-0.062
SPEC SHEET

Available:
11.00
Your Price:
10.71
Each
Item#:
BU-3346-3937-079-T

85 x 100 x 2 Solid PTFE U-Cup Back Up Ring - Metric - Limited Quantities

Available:
0.00
Your Price:
12.04
Each
Item#:
BU-3500-3750-031-VEG

3.5 x 3.75 x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3.5 OD-3.75 HT-0.031
SPEC SHEET

Available:
21.00
Your Price:
6.14
Each
Item#:
BU-3500-3875-062-T

3.5 x 3.875 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3.5 OD-3.875 HT-0.062
SPEC SHEET

Available:
8.00
Your Price:
37.24
Each
Item#:
BU-3500-4000-062-T

3.5 x 4 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3.5 OD-4 HT-0.062
SPEC SHEET

Available:
63.00
Your Price:
22.06
Each
Item#:
BU-3500-4000-075-N@1

3.5 x 4 x 0.075 Split Nylon Backup Ring for U-Cups

Hydraulic SealAlternative Seals: BU-T, BU-H, 8700

ID-3.5 OD-4 HT-0.075
SPEC SHEET

Available:
0.00
Item is no longer available.
This item has been replaced by 
Item#:
BU-3500-4000-075-N1

3.5 x 4 x 0.75 Solid Nylon Backup Ring for U-Cups - Limited Quantities

Available:
101.00
Your Price:
9.03
Each
Item#:
BU-3500-4000-075-N2S

3.5 x 4 x 0.75 Split Nylatron Backup Ring for U-Cups - Limited Quantities

Available:
58.00
Your Price:
11.03
Each
Item#:
BU-3500-4156-125-N

3.5 x 4.156 x 0.125 Solid Nylon Backup Ring for U-Cups - Limited Quantities

Available:
4.00
Your Price:
17.55
Each
Item#:
BU-3543-3937-079-T

90 x 100 x 2 Solid PTFE U-Cup Back Up Ring - Metric - Limited Quantities

Available:
0.00
Your Price:
8.75
Each
Item#:
BU-3625-4000-062-T

3.625 x 4 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3.625 OD-4 HT-0.062
SPEC SHEET

Available:
13.00
Your Price:
33.35
Each
Item#:
BU-3677-3937-059-T

93.4 x 100 x 1.5 Solid PTFE U-Cup Back Up Ring - Metric - Ltd. Qty.

Available:
8.00
Your Price:
16.13
Each
Item#:
BU-3750-4375-062-N1

3.75 x 4.375 x 0.062 Solid Nylon Backup Ring for U-Cups

Hydraulic SealAlternative Seals: BU-T, BU-H, 8700

ID-3.75 OD-4.375 HT-0.062
SPEC SHEET

Available:
455.00
Your Price:
6.71
Each
Item#:
BU-3750-4500-031-VEG

3.75 x 4.5 x 0.031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3.75 OD-4.5 HT-0.031
SPEC SHEET

Available:
12.00
Your Price:
19.01
Each
Item#:
BU-3750-4500-062-VEG

3.75 x 4.5 x 0.062 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-3.75 OD-4.5 HT-0.062
SPEC SHEET

Available:
1.00
Your Price:
19.71
Each
Item#:
BU-3875-4500-125-T

3.875 x 4.5 x 0.125 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-3.875 OD-4.5 HT-0.125
SPEC SHEET

Available:
2.00
Your Price:
58.15
Each
Item#:
BU-4000-4250-031-VEG

4 x 4.25 x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-4 OD-4.25 HT-0.031
SPEC SHEET

Available:
31.00
Your Price:
6.22
Each
Item#:
BU-4000-4250-050-VEG

4 x 4.25 x 0.05 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-4 OD-4.25 HT-0.05
SPEC SHEET

Available:
18.00
Your Price:
7.60
Each
Item#:
BU-4000-4500-062-T

4 x 4.5 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

Hydraulic SealAlternative Seals: 8700, BU-N, BU-H

ID-4 OD-4.5 HT-0.062
SPEC SHEET

Available:
24.00
Your Price:
23.74
Each
Item#:
BU-4000-4500-062-VEG

4 x 4.5 x 0.062 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-4 OD-4.5 HT-0.062
SPEC SHEET

Available:
9.00
Your Price:
5.11
Each
Item#:
BU-4000-4500-075-N@1

4 x 4.5 x 0.075 Split Nylon Backup Ring for U-Cups

Hydraulic SealAlternative Seals: BU-T, BU-H, 8700

ID-4 OD-4.5 HT-0.075
SPEC SHEET

Available:
19.00
Your Price:
20.42
Each
Item#:
BU-4080-4330-059-T

103.6 x 110 x 1.5 Solid PTFE U-Cup Back Up Ring - Metric - Ltd. Qty.

Available:
7.00
Your Price:
20.25
Each
Item#:
BU-4125-4500-062-A-S

4.125 x 4.5 x 0.062 Split Nylon Backup Ring for U-Cups - Limited Quantities

Available:
3.00
Your Price:
15.33
Each
|◀ ◀ 649 - 684 of 1638 ▶ ▶|
View: