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#:
MS28774-204

0.375 x 0.625 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-0.375 OD-0.625 HT-0.05
SPEC SHEET

Available:
89.00
Your Price:
2.87
Each
Item#:
MS28774-206

ID 0.5 CS 0.125 HT 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-0.5 OD-0.125 HT-0.05
SPEC SHEET

Available:
0.00
Your Price:
1.79
Each
Item#:
MS28774-208

0.625 x 0.875 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: PSP, O-Ring, Quad-Ring, CP

ID-0.625 OD-0.875 HT-0.05
SPEC SHEET

Available:
72.00
Your Price:
3.27
Each
Item#:
MS28774-210

0.75 x 1 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-0.75 OD-1 HT-0.05
SPEC SHEET

Available:
108.00
Your Price:
3.26
Each
Item#:
MS28774-211

0.812 x 1.062 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-0.812 OD-1.062 HT-0.05
SPEC SHEET

Available:
170.00
Your Price:
3.54
Each
Item#:
MS28774-212

0.875 x 1.125 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-0.875 OD-1.125 HT-0.05
SPEC SHEET

Available:
62.00
Your Price:
3.66
Each
Item#:
MS28774-213

0.937 x 1.187 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-0.937 OD-1.187 HT-0.05
SPEC SHEET

Available:
111.00
Your Price:
3.77
Each
Item#:
MS28774-214

1 x 1.25 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1 OD-1.25 HT-0.05
SPEC SHEET

Available:
338.00
Your Price:
3.87
Each
Item#:
MS28774-215

1.062 x 1.312 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.062 OD-1.312 HT-0.05
SPEC SHEET

Available:
77.00
Your Price:
3.92
Each
Item#:
MS28774-216

1.125 x 1.375 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.125 OD-1.375 HT-0.05
SPEC SHEET

Available:
115.00
Your Price:
3.94
Each
Item#:
MS28774-217

1.187 x 1.437 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.187 OD-1.437 HT-0.05
SPEC SHEET

Available:
229.00
Your Price:
4.23
Each
Item#:
MS28774-218

1.25 x 1.5 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.25 OD-1.5 HT-0.05
SPEC SHEET

Available:
80.00
Your Price:
4.40
Each
Item#:
MS28774-219

1.312 x 1.562 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.312 OD-1.562 HT-0.05
SPEC SHEET

Available:
4.00
Your Price:
4.41
Each
Item#:
MS28774-220

1.375 x 1.625 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.375 OD-1.625 HT-0.05
SPEC SHEET

Available:
265.00
Your Price:
4.63
Each
Item#:
MS28774-221

1.437 x 1.687 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.437 OD-1.687 HT-0.05
SPEC SHEET

Available:
33.00
Your Price:
4.80
Each
Item#:
MS28774-222

1.5 x 1.75 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.5 OD-1.75 HT-0.05
SPEC SHEET

Available:
150.00
Your Price:
5.04
Each
Item#:
MS28774-223

1.625 x 1.875 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.625 OD-1.875 HT-0.05
SPEC SHEET

Available:
61.00
Your Price:
5.37
Each
Item#:
MS28774-224

1.75 x 2 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.75 OD-2 HT-0.05
SPEC SHEET

Available:
12.00
Your Price:
5.48
Each
Item#:
MS28774-225

1.875 x 2.125 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-1.875 OD-2.125 HT-0.05
SPEC SHEET

Available:
77.00
Your Price:
5.72
Each
Item#:
MS28774-226

2 x 2.25 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2 OD-2.25 HT-0.05
SPEC SHEET

Available:
40.00
Your Price:
5.77
Each
Item#:
MS28774-227

2.125 x 2.375 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2.125 OD-2.375 HT-0.05
SPEC SHEET

Available:
50.00
Your Price:
6.12
Each
Item#:
MS28774-228

2.25 x 2.5 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2.25 OD-2.5 HT-0.05
SPEC SHEET

Available:
15.00
Your Price:
6.26
Each
Item#:
MS28774-229

2.375 x 2.625 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2.375 OD-2.625 HT-0.05
SPEC SHEET

Available:
5.00
Your Price:
6.53
Each
Item#:
MS28774-230

2.5 x 2.75 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2.5 OD-2.75 HT-0.05
SPEC SHEET

Available:
48.00
Your Price:
6.70
Each
Item#:
MS28774-231

2.625 x 2.875 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2.625 OD-2.875 HT-0.05
SPEC SHEET

Available:
30.00
Your Price:
7.15
Each
Item#:
MS28774-232

2.75 x 3 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2.75 OD-3 HT-0.05
SPEC SHEET

Available:
6.00
Your Price:
7.45
Each
Item#:
MS28774-233

2.875 x 3.125 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-2.875 OD-3.125 HT-0.05
SPEC SHEET

Available:
105.00
Your Price:
7.89
Each
Item#:
MS28774-234

3 x 3.25 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3 OD-3.25 HT-0.05
SPEC SHEET

Available:
49.00
Your Price:
8.27
Each
Item#:
MS28774-235

3.125 x 3.375 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3.125 OD-3.375 HT-0.05
SPEC SHEET

Available:
24.00
Your Price:
8.64
Each
Item#:
MS28774-236

3.25 x 3.5 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3.25 OD-3.5 HT-0.05
SPEC SHEET

Available:
40.00
Your Price:
8.97
Each
Item#:
MS28774-237

3.375 x 3.625 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3.375 OD-3.625 HT-0.05
SPEC SHEET

Available:
20.00
Your Price:
9.24
Each
Item#:
MS28774-238

3.5 x 3.75 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3.5 OD-3.75 HT-0.05
SPEC SHEET

Available:
1.00
Your Price:
9.53
Each
Item#:
MS28774-239

3.625 x 3.875 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3.625 OD-3.875 HT-0.05
SPEC SHEET

Available:
8.00
Your Price:
9.91
Each
Item#:
MS28774-240

3.75 x 4 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3.75 OD-4 HT-0.05
SPEC SHEET

Available:
45.00
Your Price:
10.27
Each
Item#:
MS28774-241

3.875 x 4.125 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-3.875 OD-4.125 HT-0.05
SPEC SHEET

Available:
52.00
Your Price:
10.53
Each
Item#:
MS28774-242

4 x 4.25 x 0.05 Single Turn Scarf Cut PTFE Back Up Ring Inch

Hydraulic SealAlternative Seals: 8-, 19-, 51-, MS27595, MS28782/83

ID-4 OD-4.25 HT-0.05
SPEC SHEET

Available:
13.00
Your Price:
10.82
Each
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