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 and lip seals.

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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:
2.00
Your Price:
24.93
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:
6.00
Your Price:
13.83
Each
Item#:
BU-4250-4500-062-T

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

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

ID-4.25 OD-4.5 HT-0.625
SPEC SHEET

Available:
17.00
Your Price:
23.89
Each
Item#:
BU-4250-4750-062-T

4.25 x 4.75 x 0.625 Solid PTFE U-Cup Back Up Ring Inch

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

ID-4.25 OD-4.75 HT-0.625
SPEC SHEET

Available:
2.00
Your Price:
26.96
Each
Item#:
BU-4250-4750-075-N@1

4.25 x 4.75 x 0.075 Split Nylon Backup Ring for U-Cups

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

ID-4.25 OD-4.75 HT-0.075
SPEC SHEET

Available:
286.00
Your Price:
11.09
Each
Item#:
BU-4250-5000-125-T

4.25 x 5 x 0.125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-4.25 OD-5 HT-0.125
SPEC SHEET

Available:
5.00
Your Price:
39.51
Each
Item#:
BU-4437-5000-062-T

4.437 x 5 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-4.437 OD-5 HT-0.062
SPEC SHEET

Available:
11.00
Your Price:
20.24
Each
Item#:
BU-4500-4750-031-VEG

4.5 x 4.75 x 0.031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-4.5 OD-4.75 HT-0.031
SPEC SHEET

Available:
3.00
Your Price:
25.83
Each
Item#:
BU-4500-4875-125-T

4.5 x 4.875 x .125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-4.5 OD-4.875 HT-0.125
SPEC SHEET

Available:
9.00
Your Price:
39.60
Each
Item#:
BU-4500-5000-062-T

4.5 x 5 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-4.5 OD-5 HT-0.062
SPEC SHEET

Available:
21.00
Your Price:
25.78
Each
Item#:
BU-4500-5000-108-T-S

4.5 x 5 x 0.108 Solid PTFE U-Cup Back Up Ring Inch

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

ID-4.5 OD-5 HT-0.108
SPEC SHEET

Available:
83.00
Your Price:
32.62
Each
Item#:
BU-4500-5000-125-N@1

4.5 x 5 x 0.125 Split Nylon Backup Ring for U-Cups

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

ID-4.5 OD-5 HT-0.125
SPEC SHEET

Available:
213.00
Your Price:
12.94
Each
Item#:
BU-4750-5375-062-N1

4.75 x 5.375 x 0.062 Solid Nylon Backup Ring for U-Cups

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

ID-4.75 OD-5.375 HT-0.062
SPEC SHEET

Available:
563.00
Your Price:
9.02
Each
Item#:
BU-4890-5350-156-Z@1

4.89 x 5.35 x 0.156 Split Nylon Backup Ring for U-Cups

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

ID-4.89 OD-5.35 HT-0.156
SPEC SHEET

Available:
191.00
Your Price:
25.38
Each
Item#:
BU-5000-5250-031-VEG

5 x 5.25 x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-5 OD-5.25 HT-0.031
SPEC SHEET

Available:
51.00
Your Price:
26.73
Each
Item#:
BU-5000-5562-062-T

5 x 5.562 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-5 OD-5.562 HT-0.062
SPEC SHEET

Available:
17.00
Your Price:
32.31
Each
Item#:
BU-5000-5875-031-VEG

5 x 5.875 x 0.031 Vegetable Fiber Back Up Inch

Available:
17.00
Your Price:
7.68
Each
Item#:
BU-5000-6000-125-N1

5 x 6 x 0.125 Solid Nylon Backup Ring for U-Cups

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

ID-5 OD-6 HT-0.125
SPEC SHEET

Available:
92.00
Your Price:
19.71
Each
Item#:
BU-5125-6000-125-T-S

5.125 x 6 x .125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-5.125 OD-6 HT-0.125
SPEC SHEET

Available:
10.00
Your Price:
49.42
Each
Item#:
BU-5250-5750-125-T-S

5.25 x 6 x 0.125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-5.25 OD-6 HT-0.125
SPEC SHEET

Available:
4.00
Your Price:
50.02
Each
Item#:
BU-5250-6000-062-T

5.25 x 6 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-5.25 OD-6 HT-0.062
SPEC SHEET

Available:
10.00
Your Price:
45.48
Each
Item#:
BU-5375-6000-062-T

5.375 x 6 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-5.375 OD-6 HT-0.062
SPEC SHEET

Available:
5.00
Your Price:
35.00
Each
Item#:
BU-5437-6000-062-T

5.437 x 6 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-5.437 OD-6 HT-0.062
SPEC SHEET

Available:
35.00
Your Price:
41.81
Each
Item#:
BU-5500-6000-125-T

5.5 x 6 x 0.125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-5.5 OD-6 HT-0.125
SPEC SHEET

Available:
5.00
Your Price:
58.60
Each
Item#:
BU-5750-6375-062-N1

5.75 x 6.375 x 0.062 Solid Nylon Backup Ring for U-Cups

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

ID-5.75 OD-6.375 HT-0.062
SPEC SHEET

Available:
271.00
Your Price:
11.58
Each
Item#:
BU-6000-6250-031-VEG

6 x 6.25 x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-6 OD-6.25 HT-0.031
SPEC SHEET

Available:
110.00
Your Price:
27.63
Each
Item#:
BU-6000-6500-062-N1

6 x 6.5 x 0.062 Solid Nylon Backup Ring for U-Cups

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

ID-6 OD-6.5 HT-0.062
SPEC SHEET

Available:
16.00
Your Price:
17.60
Each
Item#:
BU-6000-6750-125-N-S

6 x 6.75 x 0.125 Nylon Split Backup Ring for U-Cups

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

ID-6 OD-6.75 HT-0.125
SPEC SHEET

Available:
162.00
Your Price:
29.83
Each
Item#:
BU-6125-7000-125-T-S

6.125 x 7 x .125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-6.125 OD-7 HT-0.125
SPEC SHEET

Available:
9.00
Your Price:
58.03
Each
Item#:
BU-6375-7000-062-T

6.375 x 7 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-6.375 OD-7 HT-0.062
SPEC SHEET

Available:
25.00
Your Price:
37.64
Each
Item#:
BU-6437-7000-062-T

6.437 x 7 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-6.437 OD-7 HT-0.062
SPEC SHEET

Available:
7.00
Your Price:
43.81
Each
Item#:
BU-6500-7250-125-T

6.5 x 7.25 x .125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-6.5 OD-7.25 HT-0.125
SPEC SHEET

Available:
5.00
Your Price:
88.99
Each
Item#:
BU-6750-7375-062-N1

6.75 x 7.375 x 0.062 Solid Nylon Backup Ring for U-Cups

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

ID-6.75 OD-7.375 HT-0.062
SPEC SHEET

Available:
566.00
Your Price:
10.44
Each
Item#:
BU-7000-7625-062-T

7 x 7.625 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-7 OD-7.625 HT-0.062
SPEC SHEET

Available:
6.00
Your Price:
66.15
Each
Item#:
BU-7000-8000-125-T

7 X 8 X 0.125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-7 OD-8 HT-0.125
SPEC SHEET

Available:
4.00
Your Price:
44.39
Each
Item#:
BU-7375-8000-062-T

7.375 x 8 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-7.375 OD-8 HT-0.062
SPEC SHEET

Available:
16.00
Your Price:
41.07
Each
|◀ ◀ 649 - 684 of 1586 ▶ ▶|
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