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E-PACK-GRN3.55-145
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Specification/Dimensions

  • type

    • E-PACK-GRF
    • E-PACK-GRN

    Clear

  • Inner Dia. do (or d)(Ø)

    • 1.8
    • 2
    • 2.24
    • 2.5
    • 2.8
    • 3.15
    • 3.55
    • 3.75
    • 4
    • 4.5
    • 4.87
    • 5
    • 5.15
    • 5.3
    • 5.6
    • 6
    • 6.3
    • 6.7
    • 6.9
    • 7.1
    • 7.5
    • 8
    • 8.5
    • 8.75
    • 9
    • 9.5
    • 10
    • 10.6
    • 11.2
    • 11.8
    • 12.5
    • 13.2
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21.2
    • 22.4
    • 23.6
    • 25
    • 26.5
    • 28
    • 30
    • 31.5
    • 32.5
    • 33.5
    • 34.5
    • 35.5
    • 36.5
    • 37.5
    • 38.7
    • 40
    • 41.2
    • 42.5
    • 43.7
    • 45
    • 46.2
    • 47.5
    • 48.7
    • 50
    • 51.5
    • 53
    • 54.5
    • 56
    • 58
    • 60
    • 61.5
    • 63
    • 65
    • 67
    • 69
    • 71
    • 73
    • 75
    • 77.5
    • 80
    • 82.5
    • 85
    • 87.5
    • 90
    • 92.5
    • 95
    • 97.5
    • 100
    • 103
    • 106
    • 109
    • 112
    • 115
    • 118
    • 122
    • 125
    • 128
    • 132
    • 136
    • 140
    • 145
    • 150
    • 155
    • 160
    • 165
    • 170
    • 175
    • 180
    • 185
    • 190
    • 195
    • 200
    • 206
    • 212
    • 218
    • 224
    • 230
    • 236
    • 243
    • 250

    Clear

  • Wire Dia. W(mm)

    • 1.8
    • 2.65
    • 3.55
    • 5.3
    • 7

    Clear

  • Material

    • Nitrile Rubber
    • Fluoro Rubber
      • Fluoro Rubber

    Clear

  • Package Specifications

    • 2 pcs
    • 5 pcs
    • 10 pcs
    • 20 pcs
    • 50 pcs
    • 100 pcs

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  • CAD

    • 2D
    • 3D

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Days to Ship

    • All
    • Same day
    • 8 Day(s) or Less

    Clear

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O Rings GB Standards【2-100 Pieces Per Package】 (E-PACK-GRN3.55-145)

O Rings GB Standards (E-PACK-GRN3.55-145)

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  • O Rings GB Standards
  • O Rings GB Standards
  • O Rings GB Standards
  • O Rings GB Standards
  • O Rings GB Standards
  • O Rings GB Standards
  • O Rings GB Standards
  • O Rings GB Standards
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Brand :

MISUMI

MiSUMi Economy

MISUMI

Part Number :
E-PACK-GRN3.55-145
E-PACK-GRN3.55-145

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Product Description

O Rings GB Standards
These O Rings are an economy item, The price is cheaper than the MISUMI standard product. They offer a wide variety of sizes to choose from.
[Feature]
● Inner Diameter Minimum/ Maximum (mm.) : 1.8 to 250
● Thickness Minimum/ Maximum (mm.) : 1.8 to 7
● Material : Nitrile Rubber (Black) or Fluoro Rubber (Brown)
● Operating Temperature Range (℃)
Nitrile Rubber : -20 to 100
Fluoro Rubber : -10 to 200
[Application]
O-rings are utilized across multiple industries to prevent the leakage of fluids or gases between two components



Economy O-Ring

Wide selection High-quality Sealing

- Wide variety of sizes available

- High-quality nitrile and fluoro rubber materials

- Suitable for temperatures up to specified value

- Excellent sealing performance for various applications

- Available in multiple packaging options for convenience

Economy O-Ring
MISUMI Economy Logo

MISUMI Standard
MISUMI Standard

Cheaper Price
Cheaper Price

Product Variety
Product Variety

3D CAD
3D CAD Support


O-Rings Product Overview

O-Rings is a part that utilizes elastic interference of rubber materials to achieve a sealing effect. The national standard (GB) series are MISUMI self-developed economy series O-Rings products, which are widely used in applications that require sealing in various industries. GB series has market universal specifications in China, with color options for different materials, black for nitrile rubber and brown for fluorine rubber. The O-Rings is used in two ways: fixed and movable. When installed in the fixed way, usually via a plane, the O-Rings will be in the fixed state. When installed in the movable way, mainly via a cylindrical surface, the O-Rings will produce relative displacement.
 
Nitrile Rubber
(Black)
Product Drawing 1		 Fluoro Rubber
(Brown)
Product Drawing 2

O-Rings Product Features

[O-Rings Features]
・Imported rubber materials are adopted, ensuring sealing performance and ultra-long service life
・With no corners cut, density and dimensions are guaranteed
・All specifications in stock and same-day shipment.

Product Drawing 3  Product Drawing 3

O-Rings Specifications Overview

For the economy national standard series, O-Ringss are made of two materials: nitrile rubber and fluorine rubber, wire diameters include 1.8mm, 2.65mm, 3.55mm, 5.3mm and 7mm, and inner diameters include most of the specifications between 1.8mm and 250mm.

Product Drawing 5
 
MaterialHardnessColorApplicable Temperature RangeIntended Use
Nitrile RubberHS70±5Black-20℃ to 100℃Mineral Oil Resistant
Fluoro RubberHS75±5Brown-10℃ to 200℃Heat Resistant, Chemical Resistant
 
MaterialWire Diameter W (mm)Wire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d (mm)I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		1.8±0.081.8±0.1
2±0.13
2.24
2.5
2.8
3.15
3.55
3.75
4
4.5
4.87
5
5.15
5.3
5.6
6
6.3±0.14
6.7
6.9
7.1
7.5
8
8.5
8.75
9
9.5
10
10.6±0.17
11.2
11.8
12.5
13.2
14
15
16
17
18
19±0.22
20
21.2
22.4
23.6
25
26.5
28
30
32.5±0.3
34.5
36.5
38.7
42.5±0.36
46.2
50
2.65±0.0910.6±0.17
11.2
11.8
12.5
13.2
14
15
16
17
18
19±0.22
20
21.2
22.4
23.6
25
26.5
28
MaterialWire Diameter W (mm)Wire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d (mm)I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		2.65±0.0930±0.22
31.5±0.3
32.5
33.5
34.5
35.5
36.5
37.5
38.7
40
41.2±0.36
42.5
43.7
45
46.2
47.5
48.7
50
51.5±0.44
53
54.5
56
58
60
61.5
63
67±0.53
71
75
80
85±0.65
90
95
100
106
112
118
125±0.9
132
140
150
3.55±0.118±0.17
19±0.22
20
21.2
22.4
23.6
25
26.5
28
30
31.5±0.3
32.5
33.5
34.5
35.5
36.5
37.5
38.7
40
41.2±0.36
42.5
43.7
45
46.2
47.5
48.7
50
51.5±0.44
53
54.5
MaterialWire Diameter W (mm)Wire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d (mm)I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		3.55±0.156±0.44
58
60
61.5
63
65±0.53
67
69
71
73
75
77.5
80
82.5±0.65
85
87.5
90
92.5
95
97.5
100
103
106
109
112
115
118
122±0.9
125
128
132
136
140
145
150
155
160
165
170
175
180
185±1.2
190
195
200
5.3±0.1340±0.3
41.2±0.36
42.5
43.7
45
46.2
47.5
48.7±0.36
50
51.5±0.44
53
54.5
56
58
60
61.5
63
65±0.53
67
69
71
73
75
77.5
80
MaterialWire Diameter W (mm)Wire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d (mm)I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		5.3±0.1382.5±0.65
85
87.5
90
92.5
95
97.5
100
103
106
109
112
115
118
122±0.9
125
128
132
136
140
145
150
155
160
165
170
175
180
185±1.2
190
195
200
206
212
218
224
230
236
243
250
7±0.15109±0.65
112
115
118
122±0.9
125
128
132
136
140
145
150
155
160
165
170
175
180
185±1.2
190
195
200
206
212
218
224
230
236
243
250

Example of Use O-Rings

O-Ringss are suitable for many areas of industry, such as automated processing equipment, production lines, and peripheral equipment of manipulators. The O-Rings is used in two ways: fixed and movable.
When installed in the fixed way, usually via a plane, the O-Rings will be in the fixed state. When installed in the movable way, mainly via a cylindrical surface, the O-Rings will produce relative displacement.

Example of Use
Plane fixed typeCylindrical surface movable type
Internal pressure fixed typeExternal pressure fixed typeExample of Use 3
Example of Use 1Example of Use 2

O-Rings Precautions

For the O-Rings slotting size, please see the following drawing and table. The slotting size varies with the wire diameter and usage method. For detailed information, please see the data in the table.
Slotting size drawing
Precautions
mm
Wire Diameter WFixedMovable (pneumatic)Movement (hydraulic)
Groove Width GGroove Depth HGroove Width GGroove Depth HGroove Width GGroove Depth H
1.802.31.32.31.12.31.1
2.653.423.12.353.12.3
3.554.52.74.23.254.23.1
5.304.94.36.44.956.44.7
7.009.15.858.46.68.46.3

Part Number 

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  1. 1
Part Number
E-PACK-GRN3.55-145
Part NumberPriceMinimum Order Qty.Number of pc(s). included in pkg.Volume DiscountDays to ShipInner Dia. do (or d)
(Ø) 		Wire Dia. W
(mm) 		Material Package Specifications

₹ 4,128.34

1 Pack(s)

20 Pieces Per Package

Available 8 Day(s) 1453.55Nitrile Rubber20 pcs

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  1. 1

Dimensional Drawing
For the economy national standard series, O rings are made of two materials: nitrile rubber and fluorine rubber, wire diameters include 1.8mm, 2.65mm, 3.55mm, 5.3mm and 7mm, and inner diameters include most of the specifications between 1.8mm and 250mm.

Product Drawing 1
 
MaterialHardnessColorApplicable Temperature RangeIntended Use
Nitrile RubberHS70±5Black-20℃ to 100℃Mineral Oil Resistant
Fluoro RubberHS75±5Brown-10℃ to 200℃Heat Resistant, Chemical Resistant
Specifications Overview
For the economy national standard series, O rings are made of two materials: nitrile rubber and fluorine rubber, wire diameters include 1.8mm, 2.65mm, 3.55mm, 5.3mm and 7mm, and inner diameters include most of the specifications between 1.8mm and 250mm.

Product Drawing 5

 
MaterialWire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		1.8±0.081.8±0.1
2±0.13
2.24
2.5
2.8
3.15
3.55
3.75
4
4.5
4.87
5
5.15
5.3
5.6
6
6.3±0.14
6.7
6.9
7.1
7.5
8
8.5
8.75
9
9.5
10
10.6±0.17
11.2
11.8
12.5
13.2
14
15
16
17
18
19±0.22
20
21.2
22.4
23.6
25
26.5
28
30
32.5±0.3
34.5
36.5
38.7
42.5±0.36
46.2
50
2.65±0.0910.6±0.17
11.2
11.8
12.5
13.2
14
15
16
17
18
19±0.22
20
21.2
22.4
23.6
25
26.5
28
MaterialWire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		2.65±0.0930±0.22
31.5±0.3
32.5
33.5
34.5
35.5
36.5
37.5
38.7
40
41.2±0.36
42.5
43.7
45
46.2
47.5
48.7
50
51.5±0.44
53
54.5
56
58
60
61.5
63
67±0.53
71
75
80
85±0.65
90
95
100
106
112
118
125±0.9
132
140
150
3.55±0.118±0.17
19±0.22
20
21.2
22.4
23.6
25
26.5
28
30
31.5±0.3
32.5
33.5
34.5
35.5
36.5
37.5
38.7
40
41.2±0.36
42.5
43.7
45
46.2
47.5
48.7
50
51.5±0.44
53
54.5
MaterialWire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		3.55±0.156±0.44
58
60
61.5
63
65±0.53
67
69
71
73
75
77.5
80
82.5±0.65
85
87.5
90
92.5
95
97.5
100
103
106
109
112
115
118
122±0.9
125
128
132
136
140
145
150
155
160
165
170
175
180
185±1.2
190
195
200
5.3±0.1340±0.3
41.2±0.36
42.5
43.7
45
46.2
47.5
48.7±0.36
50
51.5±0.44
53
54.5
56
58
60
61.5
63
65±0.53
67
69
71
73
75
77.5
80
MaterialWire Diameter W
(mm)		Wire Diameter Tolerance
(mm)		I.D. d
(mm)		I.D. Tolerance
(mm)
Nitrile Rubber


Fluoro Rubber		5.3±0.1382.5±0.65
85
87.5
90
92.5
95
97.5
100
103
106
109
112
115
118
122±0.9
125
128
132
136
140
145
150
155
160
165
170
175
180
185±1.2
190
195
200
206
212
218
224
230
236
243
250
7±0.15109±0.65
112
115
118
122±0.9
125
128
132
136
140
145
150
155
160
165
170
175
180
185±1.2
190
195
200
206
212
218
224
230
236
243
250

Please check the type/dimensions/specifications of the part E-PACK-GRN3.55-145 in the O Rings GB Standards series.

Frequently asked question (FAQ)

Question: MISUMI economy series O-ring is made according to what standard? Can you introduce the operating environment and slotting size requirements?
Answer: MISUMI economy series O-rings a series of Chinese national standard products, and the operating environment is differentiated according to the material. The operating temperature is 100℃ for nitrile rubber and 200℃ for fluororubber. The slotting size is determined according to the wire diameter and the way of use. Please refer to the content of the precautions for use on the web page.
Question: What preparations are needed before installing the O-ring?
Answer: Please apply sealing fluid to the installation surface and O-ring before installation. Please apply silicone oil in a dry environment (except when the O-ring is silicone). Do not apply if there is contamination due to sealing fluid. Before installation, please do not clean the machine with gasoline or cleaning oil to avoid rubber expansion.

Product variants

Part Number
E-PACK-GRF1.8-11.2
E-PACK-GRF1.8-11.8
E-PACK-GRF1.8-12.5
E-PACK-GRN3.55-150
E-PACK-GRN3.55-155
E-PACK-GRN3.55-160
Part NumberStandard Unit PriceNumber of pc(s). included in pkg.Minimum order quantityVolume DiscountDays to ShipInner Dia. do (or d)
(Ø) 		Wire Dia. W
(mm) 		Material Package Specifications

₹ 1,678.34

50 Pieces Per Package

1 Pack(s)Available 8 Day(s) 11.21.8[Fluoro Rubber] Fluoro Rubber50 pcs

₹ 1,678.34

50 Pieces Per Package

1 Pack(s)Available 8 Day(s) 11.81.8[Fluoro Rubber] Fluoro Rubber50 pcs

₹ 1,728.34

50 Pieces Per Package

1 Pack(s)Available 8 Day(s) 12.51.8[Fluoro Rubber] Fluoro Rubber50 pcs

₹ 4,286.67

20 Pieces Per Package

1 Pack(s)Available 8 Day(s) 1503.55Nitrile Rubber20 pcs

₹ 4,403.34

20 Pieces Per Package

1 Pack(s)Available 8 Day(s) 1553.55Nitrile Rubber20 pcs

₹ 2,346.67

10 Pieces Per Package

1 Pack(s)Available 8 Day(s) 1603.55Nitrile Rubber10 pcs

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