MB (MODULAR BU)

MB (MODULAR BU) BACKUP-UP O-RING by Patriot Fluid Power
Seal Information
MATERIAL :URETHANE (AU, EU)
TEMPERATURE RANGE :-65°F (-54°C) TO +250°F (121°C) Depending on compound
HARDNESS :95 (See Chart)
PART NUMBER :(CS)–(I.D.)(MB)
Chemical Compatibility : – Hydraulic oil and gasoline resistance
– Pure aliphatic hydrocarbons (propane, butane, fuel)
– Mineral and silicone oils and greases
– Water, oxygen, ozone, and aging
– Excellent tear and abrasion resistance

Polyurethane rubber (AU-polyester urethane, EU-polyether urethane) is a thermoplastic elastomer formed by reacting a polyol with a disocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives. Polyurethane rubber is widely used due to its high strength, and excellent tear and abrasion resistance. Polyurethane also provides excellent permeation resistance.

Cross Section
0.125″
18
0.156″
532
0.187″
316
0.218″
732
0.25″
14
0.281″
932
0.312″
516
0.343″
1132
0.375″
38
0.406″
1332
0.437″
716
A Nom ID
0.5″
12
0.625″
58
0.75″
34
1″
1.187″
1316
1.25″
114
1.37″
138
1.375″
138
1.625″
158
1.75″
134
1.87″
178
2″
2.12″
2.12 
2.125″
218
2.25″
214
2.37″
238
2.5″
212
2.62″
2.62 
2.75″
234
2.812″
21316
3″
3.12″
3.12 
3.125″
318
3.25″
314
3.5″
312
3.62″
3.62 
3.875″
378
4″
4.25″
414
4.43″
4716
4.5″
412
4.75″
434
5″
5.25″
514
5.375″
538
5.437″
5716
5.5″
512
6″
6.375″
638
6.5″
612
7″
7.375″
738
9.312″
9516
11.25″
1114
13.187″
13316
B Nom OD
0.75″
34
0.875″
78
1″
1.312″
1516
1.5″
112
1.687″
11116
1.75″
134
1.87″
178
2″
2.124″
218
2.25″
214
2.374″
238
2.494″
2.494 
2.5″
212
2.624″
258
2.744″
2.744 
2.75″
234
2.874″
2.874 
2.994″
2.994 
3″
3.124″
318
3.248″
314
3.25″
314
3.37″
338
3.436″
3716
3.5″
312
3.75″
334
3.87″
378
4″
4.25″
414
4.37″
438
4.5″
412
4.749″
434
4.75″
434
5″
5.124″
518
5.25″
514
5.374″
538
5.5″
512
5.624″
558
5.75″
534
6″
6.25″
614
6.5″
612
6.75″
634
7″
7.25″
714
7.75″
734
8″
10″
10 
12″
12 
14″
14 
C Nom Hgt
0.125″
18
0.156″
532
0.187″
316
0.218″
732
0.25″
14
0.281″
932
0.312″
516
0.343″
1132
0.375″
38
0.406″
1332
0.437″
716
0.5″
12
Clear Filters
Product Cross SectionA Nom IDB Nom ODC Nom HgtAvailability
125‑00.500MB 18
0.125″
12
0.5″
34
0.75″
18
0.125″
*1-3 Days
125‑00.500MB UR95 18
0.125″
12
0.5″
34
0.75″
18
0.125″
*1-3 Days
125‑00.625MB 18
0.125″
58
0.625″
78
0.875″
18
0.125″
*1-3 Days
125‑00.625MB UR95 18
0.125″
58
0.625″
78
0.875″
18
0.125″
*1-3 Days
125‑00.7500MB‑S 18
0.125″
34
0.75″
1″
18
0.125″
*1-3 Days
125‑00.750MB 18
0.125″
34
0.75″
1″
18
0.125″
*1-3 Days
125‑00.7500MB‑S UR95 18
0.125″
34
0.75″
1″
18
0.125″
*1-3 Days
125‑00.750MB UR95 18
0.125″
34
0.75″
1″
18
0.125″
*1-3 Days
156‑01.000MB 532
0.156″
1″
1516
1.312″
532
0.156″
*1-3 Days
156‑01.000MB UR95 532
0.156″
1″
1516
1.312″
532
0.156″
*1-3 Days
156‑01.187MB 532
0.156″
1316
1.187″
112
1.5″
532
0.156″
*1-3 Days
156‑01.187MB UR95 532
0.156″
1316
1.187″
112
1.5″
532
0.156″
*1-3 Days
250‑01.250MB 14
0.25″
114
1.25″
134
1.75″
14
0.25″
*1-3 Days
250‑01.250MB UR95 14
0.25″
114
1.25″
134
1.75″
14
0.25″
*1-3 Days
250‑01.375MB 14
0.25″
138
1.37″
178
1.87″
14
0.25″
*1-3 Days
250‑01.375MB UR95 14
0.25″
138
1.37″
178
1.87″
14
0.25″
*1-3 Days
156‑01.375MB 532
0.156″
138
1.375″
11116
1.687″
532
0.156″
*1-3 Days
156‑01.375MB UR95 532
0.156″
138
1.375″
11116
1.687″
532
0.156″
*1-3 Days
187‑01.625MB 316
0.187″
158
1.625″
2″
316
0.187″
*1-3 Days
187‑01.625MB UR95 316
0.187″
158
1.625″
2″
316
0.187″
*1-3 Days
187‑01.7500MB 316
0.187″
134
1.75″
218
2.124″
316
0.187″
*1-3 Days
187‑01.750MB 316
0.187″
134
1.75″
218
2.124″
316
0.187″
*1-3 Days
187‑01.7500MB UR95 316
0.187″
134
1.75″
218
2.124″
316
0.187″
*1-3 Days
187‑01.750MB UR95 316
0.187″
134
1.75″
218
2.124″
316
0.187″
*1-3 Days
250‑01.7500MB 14
0.25″
134
1.75″
214
2.25″
14
0.25″
*1-3 Days
* This is an estimated delivery time, all delivery times may vary depending on factory lead times. A confirming sales order will be sent to you with updated delivery information when necessary.
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