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-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:
7.00
Your Price:
59.77
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:
5.00
Your Price:
38.78
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:
3.00
Your Price:
45.13
Each
Item#:
BU-6496-7087-108-T-S

165 x 180 x 2.75 Split PTFE U-Cup Back Up Ring - Metric - Ltd. Qty.

Available:
0.00
Your Price:
29.97
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:
91.66
Each
Item#:
BU-6579-7106-118-N-S

167 x 180.5 x 3 Split Nylon Backup Ring for U-Cups - Limited Quantities

Available:
2.00
Your Price:
10.80
Each
Item#:
BU-6670-6910-080-T

6.67 x 6.91 x 0.08 Solid PTFE U-Cup Back Up Ring - Inch - Ltd. Qty.

Available:
16.00
Your Price:
22.58
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:
0.00
Your Price:
10.76
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:
2.00
Your Price:
68.13
Each
Item#:
BU-7000-7750-125-N

7 x 7.75 x 0.125 Solid Nylon Backup Ring for U-Cups - Limited Quantities

Available:
1.00
Your Price:
29.27
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:
0.00
Your Price:
45.72
Each
Item#:
BU-7284-7874-108-T-S

185 x 200 x 2.75 Split PTFE U-Cup Back Up Ring - Metric - Ltd. Qty.

Available:
0.00
Your Price:
42.61
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:
29.00
Your Price:
42.30
Each
Item#:
BU-7500-8250-125-TFE

7.5 x 8.25 x 0.125 Solid PTFE U-Cup Back Up Ring Inch

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

ID-7.5 OD-8.25 HT-0.125
SPEC SHEET

Available:
1.00
Your Price:
62.74
Each
Item#:
BU-7905-8543-062-N1

7.905 x 8.543 x 0.062 Solid Nylon Backup Ring for U-Cups

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

ID-7.905 OD-8.543 HT-0.062
SPEC SHEET

Available:
355.00
Your Price:
12.43
Each
Item#:
BU-8000-8250-031-VEG

8 x 8.25 x .031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-8 OD-8.25 HT-0.031
SPEC SHEET

Available:
12.00
Your Price:
8.86
Each
Item#:
BU-8000-8312-021-VEG

8 x 8.312 x 0.021 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-8 OD-8.312 HT-0.021
SPEC SHEET

Available:
10.00
Your Price:
11.89
Each
Item#:
BU-8000-8375-032-VEG

8 x 8.375 x 0.031 Vegetable Fiber Back Up Inch

Hydraulic Seal

ID-8 OD-8.375 HT-0.031
SPEC SHEET

Available:
6.00
Your Price:
13.32
Each
Item#:
BU-8000-8750-062-T

8 x 8.75 x 0.0625 Solid PTFE U-Cup Back Up Ring Inch

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

ID-8 OD-8.75 HT-0.0625
SPEC SHEET

Available:
6.00
Your Price:
59.12
Each
Item#:
BU-8375-9375-187-T

8.375 x 9.375 x 0.187 Solid PTFE U-Cup Back Up Ring Inch

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

ID-8.375 OD-9.375 HT-0.187
SPEC SHEET

Available:
10.00
Your Price:
70.07
Each
Item#:
BU-8500-9500-125-N-S

8.5 x 9.5 x 0.125 Split Nylon Backup Ring for U-Cups

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

ID-8.5 OD-9.5 HT-0.125
SPEC SHEET

Available:
11.00
Your Price:
37.99
Each
Item#:
BU-8500-9500-187-T

8.5 x 9.5 x 0.187 Solid PTFE U-Cup Back Up Ring Inch

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

ID-8.5 OD-9.5 HT-0.187
SPEC SHEET

Available:
1.00
Your Price:
127.71
Each
Item#:
BU-8661-9055-079-T

220 x 230 x 2 Solid PTFE U-Cup Back Up Ring - Metric - Limited Quantities

Available:
0.00
Your Price:
35.91
Each
Item#:
BU-8661-9448-177-A

220 x 240 x 4.5 Solid POM Backup Ring for U-Cups - Limited Quantities

Available:
1.00
Your Price:
92.50
Each
Item#:
BU-9250-10007-080-T

9.25 x 10.007 x 0.08 Solid PTFE U-Cup Back Up Ring - Inch - Ltd. Qty.

Available:
0.00
Your Price:
54.15
Each
Item#:
BU-9312-10000-062-T

9.312 x 10 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-9.312 OD-10 HT-0.062
SPEC SHEET

Available:
6.00
Your Price:
58.23
Each
Item#:
BU-9375-10000-062-N1

9.375 x 10 x 0.062 Solid Nylon Backup Ring for U-Cups

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

ID-9.375 OD-10 HT-0.062
SPEC SHEET

Available:
102.00
Your Price:
15.41
Each
Item#:
BU-9375-10000-062-T

9.375 x 10 x 0.062 Solid PTFE U-Cup Back Up Ring Inch

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

ID-9.375 OD-10 HT-0.062
SPEC SHEET

Available:
8.00
Your Price:
66.66
Each
Item#:
BU-9819-10236-069-T

249.4 x 260 x 1.75 Solid PTFE U-Cup Back Up Ring - Metric - Ltd. Qty.

Available:
0.00
Your Price:
160.06
Each
Item#:
BUKIT382

8-N90 Contoured Back Up Kit 382 PCS 30 Sizes

Hydraulic SealAlternative Seals: 19-, 51-, MS28774, MS27595, MS28782, MS28783

  • -006 through -012 (20 pcs/EA)
  • -110 through -116 (13 pcs/EA)
  • -210 through -222 (10 pcs/EA)
  • -325 through -327 (7 pcs/EA)

Manufacturer:
C
Available:
2.00
Your Price:
137.07
Each
Item#:
BUKIT382-T

Solid Teflon Back Up Kit / 382 PC 30 Sizes

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS28774, MS28782, MS28783

  • -006 through -012 (20 pcs/EA)
  • -110 through -116 (13 pcs/EA)
  • -210 through -222 (10 pcs/EA)
  • -325 through -327 (7 pcs/EA)

Manufacturer:
C
Available:
2.00
Your Price:
337.21
Each
Item#:
MBH-100X105X1.5

100 x 105 x 1.5 55 Shore D Hytrel® Back Up Ring Metric

Hydraulic SealAlternative Seals: MBT, MBN

ID-100 OD-105 HT-1.5
SPEC SHEET

Available:
242.00
Your Price:
2.29
Each
Item#:
MBH-100X110X2

100 x 110 x 2 55 Shore D Hytrel® Back Up Ring Metric

Hydraulic SealAlternative Seals: MBT, MBN

ID-100 OD-110 HT-2
SPEC SHEET

Available:
178.00
Your Price:
2.41
Each
Item#:
MBH-100X115X3

100 x 115 x 3 55 Shore D Hytrel® Back Up Ring Metric

Hydraulic SealAlternative Seals: MBT, MBN

ID-100 OD-115 HT-3
SPEC SHEET

Available:
102.00
Your Price:
2.00
EACH
Item#:
MBH-100X120X3

100 x 120 x 3 55 Shore D Hytrel® Back Up Ring Metric

Hydraulic SealAlternative Seals: MBT, MBN

ID-100 OD-120 HT-3
SPEC SHEET

Available:
95.00
Your Price:
4.15
Each
Item#:
MBH-105X110X1.5

105 x 110 x 1.5 55 Shore D Hytrel® Back Up Ring Metric

Hydraulic SealAlternative Seals: MBT, MBN

ID-105 OD-110 HT-1.5
SPEC SHEET

Available:
53.00
Your Price:
1.75
Each
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