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#:
MS27595-158

4.75 x 4.937 x .05 Solid PTFE Back Up Ring Inch

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

ID-4.75 OD-4.937 HT-0.05
SPEC SHEET

Available:
7.00
Your Price:
18.24
Each
Item#:
MS27595-166

6.75 x 6.926 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-6.75 OD-6.926 HT-0.05
SPEC SHEET

Available:
14.00
Your Price:
22.93
Each
Item#:
MS27595-210

0.75 x 0.988 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-0.75 OD-0.988 HT-0.05
SPEC SHEET

Available:
195.00
Your Price:
2.20
Each
Item#:
MS27595-211

0.812 x 1.05 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-0.812 OD-1.05 HT-0.05
SPEC SHEET

Available:
19.00
Your Price:
2.48
Each
Item#:
MS27595-212

0.875 x 1.113 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-0.875 OD-1.113 HT-0.05
SPEC SHEET

Available:
212.00
Your Price:
2.60
Each
Item#:
MS27595-213

0.937 x 1.175 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-0.937 OD-1.175 HT-0.05
SPEC SHEET

Available:
216.00
Your Price:
2.61
Each
Item#:
MS27595-214

1 x 1.238 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1 OD-1.238 HT-0.05
SPEC SHEET

Available:
208.00
Your Price:
2.24
Each
Item#:
MS27595-215

1.602 x 1.84 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.602 OD-1.84 HT-0.05
SPEC SHEET

Available:
77.00
Your Price:
2.95
Each
Item#:
MS27595-216

1.125 x 1.363 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.125 OD-1.363 HT-0.05
SPEC SHEET

Available:
164.00
Your Price:
3.17
Each
Item#:
MS27595-217

1.187 x 1.425 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.187 OD-1.425 HT-0.05
SPEC SHEET

Available:
73.00
Your Price:
3.39
Each
Item#:
MS27595-218

1.25 x 1.488 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.25 OD-1.488 HT-0.05
SPEC SHEET

Available:
13.00
Your Price:
3.13
Each
Item#:
MS27595-219

1.312 x 1.55 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.312 OD-1.55 HT-0.05
SPEC SHEET

Available:
224.00
Your Price:
4.02
Each
Item#:
MS27595-220

1.375 x 1.613 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.375 OD-1.613 HT-0.05
SPEC SHEET

Available:
194.00
Your Price:
2.88
Each
Item#:
MS27595-221

1.437 x 1.675 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.437 OD-1.675 HT-0.05
SPEC SHEET

Available:
62.00
Your Price:
4.33
Each
Item#:
MS27595-222

1.5 x 1.738 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.5 OD-1.738 HT-0.05
SPEC SHEET

Available:
109.00
Your Price:
4.49
Each
Item#:
MS27595-223

1.625 x 1.863 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.625 OD-1.863 HT-0.05
SPEC SHEET

Available:
58.00
Your Price:
4.75
Each
Item#:
MS27595-224

1.75 x 1.988 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.75 OD-1.988 HT-0.05
SPEC SHEET

Available:
158.00
Your Price:
4.90
Each
Item#:
MS27595-225

1.875 x 2.113 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-1.875 OD-2.113 HT-0.05
SPEC SHEET

Available:
36.00
Your Price:
5.08
Each
Item#:
MS27595-226

2 x 2.238 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2 OD-2.238 HT-0.05
SPEC SHEET

Available:
15.00
Your Price:
5.16
Each
Item#:
MS27595-227

2.125 x 2.363 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2.125 OD-2.363 HT-0.05
SPEC SHEET

Available:
52.00
Your Price:
5.35
Each
Item#:
MS27595-228

2.25 x 2.488 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2.25 OD-2.488 HT-0.05
SPEC SHEET

Available:
68.00
Your Price:
5.42
Each
Item#:
MS27595-229

2.375 x 2.613 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2.375 OD-2.613 HT-0.05
SPEC SHEET

Available:
50.00
Your Price:
6.57
Each
Item#:
MS27595-230

2.5 x 2.738 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2.5 OD-2.738 HT-0.05
SPEC SHEET

Available:
20.00
Your Price:
7.28
Each
Item#:
MS27595-231

2.625 x 2.863 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2.625 OD-2.863 HT-0.05
SPEC SHEET

Available:
99.00
Your Price:
7.38
Each
Item#:
MS27595-232

2.75 x 2.988 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2.75 OD-2.988 HT-0.05
SPEC SHEET

Available:
115.00
Your Price:
7.57
Each
Item#:
MS27595-233

2.88 x 3.118 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-2.88 OD-3.118 HT-0.05
SPEC SHEET

Available:
52.00
Your Price:
7.64
Each
Item#:
MS27595-234

3 x 3.238 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3 OD-3.238 HT-0.05
SPEC SHEET

Available:
211.00
Your Price:
7.97
Each
Item#:
MS27595-235

3.125 x 3.363 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3.125 OD-3.363 HT-0.05
SPEC SHEET

Available:
38.00
Your Price:
8.01
Each
Item#:
MS27595-236

3.25 x 3.488 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3.25 OD-3.488 HT-0.05
SPEC SHEET

Available:
132.00
Your Price:
8.10
Each
Item#:
MS27595-237

3.375 x 3.613 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3.375 OD-3.613 HT-0.05
SPEC SHEET

Available:
275.00
Your Price:
8.29
Each
Item#:
MS27595-238

3.5 x 3.738 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3.5 OD-3.738 HT-0.05
SPEC SHEET

Available:
103.00
Your Price:
8.68
Each
Item#:
MS27595-239

3.625 x 3.863 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3.625 OD-3.863 HT-0.05
SPEC SHEET

Available:
85.00
Your Price:
8.68
Each
Item#:
MS27595-240

3.75 x 3.988 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3.75 OD-3.988 HT-0.05
SPEC SHEET

Available:
190.00
Your Price:
8.88
Each
Item#:
MS27595-241

3.875 x 4.113 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-3.875 OD-4.113 HT-0.05
SPEC SHEET

Available:
72.00
Your Price:
9.36
Each
Item#:
MS27595-242

4 x 4.238 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-4 OD-4.238 HT-0.05
SPEC SHEET

Available:
84.00
Your Price:
10.08
Each
Item#:
MS27595-243

4.125 x 4.363 x 0.05 Solid PTFE Back Up Ring Inch

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

ID-4.125 OD-4.363 HT-0.05
SPEC SHEET

Available:
6.00
Your Price:
10.57
Each
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