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Part Number Complete

CO0203A
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Specification/Dimensions

  • type

    • G

    Clear

  • I.D. d(Ø)

    • 24.4
    • 29.4
    • 34.4
    • 39.4
    • 44.4
    • 49.4
    • 54.4
    • 59.4
    • 64.4
    • 69.4
    • 74.4
    • 79.4
    • 84.4
    • 89.4
    • 94.4
    • 99.4
    • 104.4
    • 109.4
    • 114.4
    • 119.4
    • 124.4
    • 129.4
    • 134.4
    • 139.4
    • 144.4
    • 149.3
    • 154.3
    • 159.3
    • 164.3
    • 169.3
    • 174.3
    • 179.3
    • 184.3
    • 189.3
    • 194.3
    • 199.3
    • 204.3
    • 209.3
    • 214.3
    • 219.3
    • 224.3
    • 229.3
    • 234.3
    • 239.3
    • 244.3
    • 249.3
    • 254.3
    • 259.3
    • 264.3
    • 269.3
    • 274.3
    • 279.3
    • 284.3
    • 289.3
    • 294.3
    • 299.3
    • 309.3
    • 314.3
    • 319.3
    • 324.3
    • 329.3
    • 334.3
    • 339.3
    • 344.3
    • 349.3
    • 354.3
    • 359.3
    • 364.3
    • 369.3
    • 384.3
    • 394.3
    • 399.3
    • 409.3
    • 414.3
    • 419.3
    • 424.3
    • 444.3
    • 459.3
    • 474.3
    • 479.3
    • 489.3

    Clear

  • Thickness W(mm)

    • 3.1
    • 5.7

    Clear

  • Material

    • Nitrile Rubber
    • Silicon Rubber
    • Fluorine Rubber

    Clear

  • Environment, application

    • Mineral Oil Resistant
    • Heat Resistant

    Clear

  • Old JIS Bearing Number

    • G25
    • G30
    • G35
    • G40
    • G45
    • G50
    • G55
    • G60
    • G65
    • G70
    • G75
    • G80
    • G85
    • G90
    • G95
    • G100
    • G105
    • G110
    • G115
    • G120
    • G125
    • G130
    • G135
    • G140
    • G145
    • G150
    • G155
    • G160
    • G165
    • G170
    • G175
    • G180
    • G185
    • G190
    • G195
    • G200
    • G205
    • G210
    • G215
    • G220
    • G225
    • G230
    • G235
    • G240
    • G245
    • G250
    • G255
    • G260
    • G265
    • G270
    • G275
    • G280
    • G285
    • G290
    • G295
    • G300
    • G310
    • G315
    • G320
    • G325
    • G330
    • G335
    • G340
    • G345
    • G350
    • G355
    • G360
    • G365
    • G370
    • G385
    • G395
    • G400
    • G410
    • G415
    • G420
    • G425
    • G445
    • G460
    • G475
    • G480
    • G490

    Clear

  • Material (JIS Symbol)

    • 1 Type A
    • 1 Type B
    • Class 4 C
    • Class 4 D

    Clear

  • Hardness

    • 70
    • 90

    Clear

  • Model Number Notation

    • Old JIS Bearing Number
    • Type Dimension Code

    Clear

Days to Ship

    • All
    • Same day
    • 5 Day(s) or Less
    • 6 Day(s) or Less
    • 9 Day(s) or Less
    • 10 Day(s) or Less
    • 11 Day(s) or Less
    • 13 Day(s) or Less

    Clear

Specify Alterations

O-Ring JIS B 2401 - G Series (Static application) (CO0203A)

O-Ring JIS B 2401 - G Series (Static application) (CO0203A)
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Brand :

NOK

NOK

Part Number :
CO0203A
CO0203A

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Caution

  • Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
    There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

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Product DetailProduct Detail

Product Description

O-Ring JIS B 2401 - G Series (Static application)
The O Ring is a commonly employed sealing component found in automation machines across a wide range of industries.
[Feature]
● Inner Diameter Minimum/ Maximum (mm.) : 24.4 to 499.3
● Thickness (mm.) : 3.1 and 5.7
● Applications Environment : Heat Resistant or Mineral Oil Resistant
● Material : Nitrile Rubber, Silicone Rubber and Fluoro Rubber
[Application]
O-rings are utilized across multiple industries to prevent the leakage of fluids or gases between two components

Dimension
                                                                                                                            
                                                                                                                    O-Ring dimension                                                        

         
                     Cylindrical static aplication                                     Internal pressure                                        External pressure    

                                               
                                          
                    No backup ring                              One side backup ring                                Both sides backup rings
                                                          (only dynamic, cllindrical static application)           (only dynamic, cylindrical static application)

 
Material  JIS symbolNBR-70-1NBR-90NBR-70-2VMQ-70FKM-70
  Old JIS symbolClass 1AClass 1BClass 2Class 4CClass 4D
  NOK symbolA305A105A122S503F201


Specification Table

☆ For this code, only meterial A305 or F201 is available.
Product CodeJIS dimension identification codeO-Ring dimension
Type
Dimension
Code		Material code
←
□:put material
    code left** 
 		(Reference)
Old JIS
Callout
number		Thickness
W		Inside Diameter
d0		Tolerance of inside diameter 'd0'Burr
dimension
f
NBR-70-1NBR-
90		NBR-70-2VMQ-
70		FMK-
70		A305
(NBR-70-1)
A105
(NBR-90)
A122
(NBR-70-2)		S503
(VMQ-70)		F201
(FKM-70)
Class 1A
A305		Class 1B
A105		Class
2
A122		Class 4C
S503		Class 4D
F201
CO00200ABCLR6OR □
G25-N		G253.1±0.124.4±0.25±0.37±0.30Max. 0.12
CO00201U0OR □
G30-N		G3029.4±0.29±0.43±0.34
CO00202U2OR □
G35-N		G3534.4±0.33±0.49±0.39
CO00203U2OR □
G40-N		G4039.4±0.37±0.55±0.44
CO00204U2OR □
G45-N		G4544.4±0.41±0.61±0.49
CO00205U0OR □
G50-N		G5049.4±0.45±0.67±0.54
CO00206R8OR □
G55-N		G5554.4±0.49±0.73±0.58
CO00207U0OR □
G60-N		G6059.4±0.53±0.79±0.63
CO00208Q6OR □
G65-N		G6564.4±0.57±0.85±0.68
CO00209U2OR □
G70-N		G7069.4±0.61±0.91±0.73
CO00210U2OR □
G75-N		G7574.4±0.65±0.97±0.78
CO00211U2OR □
G80-N		G8079.4±0.69±1.03±0.82
CO00212Q1OR □
G85-N		G8584.4±0.73±1.09±0.87
CO00213U2OR □
G90-N		G9089.4±0.77±1.15±0.92
CO00214U2OR □
G95-N		G9594.4±0.81±1.21±0.97
CO00215U2OR □
G100-N		G10099.4±0.85±1.27±1.02
CO00216U2OR □
G105-N		G105104.4±0.87±1.30±1.04
CO00217U2OR □
G110-N		G110109.4±0.91±1.36±1.09
CO00218U2OR □
G115-N		G115114.4±0.94±1.41±1.12
CO00219R0OR □
G120-N		G120119.4±0.98±1.47±1.17
CO00220U2OR □
G125-N		G125124.4±1.01±1.51±1.21
CO00221U2OR □
G130-N		G130129.4±1.05±1.57±1.26
CO00222U2OR □
G135-N		G135134.4±1.08±1.62±1.29
CO00223X0OR □
G140-N		G140139.4±1.12±1.68±1.34
CO00224U2OR □
G145-N		G145144.4±1.16±1.74±1.39
CO00225ABCLU3OR □
G150-N		G1505.7±0.13149.3±1.19±1.78±1.42Max. 0.16
CO00226U3OR □
G155-N		G155154.3±1.23±1.84±1.47
CO00227U3OR □
G160-N		G160159.3±1.26±1.89±1.51
CO00228U3OR □
G165-N		G165164.3±1.30±1.95±1.56
CO00229U3OR □
G170-N		G170169.3±1.33±1.99±1.59
CO00230U3OR □
G175-N		G175174.3±1.37±2.05±1.64
CO00231W0OR □
G180-N		G180179.3±1.40±2.10±1.68
CO00232U3OR □
G185-N		G185184.3±1.44±2.16±1.72
CO00233U3OR □
G190-N		G190189.3±1.47±2.20±1.76
CO00234U3OR □
G195-N		G195194.3±1.51±2.26±1.81
CO00235U3OR □
200G-N		G200199.3±1.55±2.32±1.86
CO01968☆---H0OR □
G205-N☆		G205☆204.3±1.58-±1.90
CO00236BCLV0OR □
G210-N		G210209.3±1.61±2.41±1.93
CO03303☆---O0OR □
G215-N☆		G215☆214.3±1.65-±1.98
CO00237BCLU3OR □
G220-N		G220219.3±1.68±2.52±2.01
CO02011☆---P0OR □
G225-N		G225☆224.3±1.71-±2.05
CO00238BCLU3OR □
G230-N		G230229.3±1.73±2.59±2.07
CO02031☆---O0OR □
G235-N☆		G235☆234.3±1.78-±2.14
CO00239BCLU3OR □
G240-N		G240239.3±1.81±2.71±2.17
CO02060☆---G0OR □
G245-N☆		G245☆244.3±1.85-±2.22
CO00240BCLU3OR □
G250-N		G250249.3±1.88±2.82±2.25
CO02079☆---H0OR □
G255-N☆		G255☆254.3±1.91-±2.29
CO00241BCLU3OR □
G260-N		G260259.3±1.94±2.91±2.32
CO06543☆---H0OR □
G265-N☆		G265☆264.3±1.98-±2.38
CO00242BCLU3OR □
G270-N		G270269.4±2.01±3.01±2.41
CO02100☆---H0OR □
G275-N☆		G275☆274.3±2.04-±2.45
CO00243BCLU3OR □
G280-N		G280279.3±2.07±3.10±2.48
CO03210☆---H0OR □
G285-N☆		G285☆284.3±2.11-±2.53
CO00244BCLU3OR □
G290-N		G290289.3±2.14±3.21±2.56
CO06566☆---P0OR □
G295-N		G295☆294.3±2.17-±2.60
CO00245BCLU3OR □
G300-N		G300299.3±2.20±3.30±2.64
CO01137☆---G0OR □
G305-N☆		G305☆304.3±2.24-±2.69
CO02158☆OR □
G310-N☆		G310☆309.3±2.27±2.72
CO08811☆OR □
G315-N☆		G315☆314.3±2.30±2.76
CO02176☆OR □
G320-N☆		G320☆319.3±2.33±2.80
CO08812☆OR □
G325-N☆		G325☆324.3±2.36±2.83
CO08813☆OR □
G330-N☆		G330☆329.3±2.39±2.87
CO08814☆OR □
G335-N☆		G335☆334.3±2.42±2.90
CO02206☆OR □
G340-N☆		G340☆339.3±2.45±2.94
CO02216☆OR □
G345-N☆		G345☆344.3±2.48±2.98
CO02223☆OR □
G350-N☆		G350☆349.3±2.51±3.01
CO08815☆OR □
G355-N☆		G355☆354.3±2.54±3.05
CO02244☆OR □
G360-N☆		G360☆359.3±2.57±3.08
CO08816☆OR □
G365-N☆		G365☆364.4±2.60±3.12
CO08817☆OR □
G370-N☆		G370☆369.3±2.63±3.16
CO08818☆OR □
G375-N☆		G375☆374.3±2.67±3.20
CO02272☆OR □
G380-N☆		G380☆379.3±2.70±3.24
CO08819☆OR □
G385-N☆		G385☆384.3±2.73±3.28
CO02287☆OR □
G390-N☆		390G☆389.3±2.77±3.32
CO08820☆OR □
G395-N☆		G395☆394.3±2.79±3.35
CO02301☆OR □
G400-N☆		G400☆399.3±2.82±3.38
CO08821☆OR □
G405-N☆		G405☆404.3±3.00±3.60Max. 0.16
CO08822☆OR □
G410-N☆		G410☆409.3
CO02336☆OR □
415-N☆		G415☆414.3
CO08823☆OR □
G420-N☆		G420☆419.3
CO02358☆OR □
G425-N☆		G425☆424.3
CO08824☆OR □
G430-N☆		G430☆429.3
CO08825☆OR □
G435-N☆		G435☆434.3
CO08826☆OR □
G440-N☆		G440☆439.3
CO08827☆OR □
G445-N☆		G445☆444.3
CO02417☆OR □
G450-N☆		G450☆449.3
CO08828☆OR □
G455-N☆		G455☆454.3±3.30±4.00Max. 0.16
CO02441☆OR □
G460-N☆		G460☆459.3
CO06715☆OR □
G465-N☆		G465☆464.3
CO02460☆OR □
G470-N☆		G470☆469.3
CO08829☆OR □
G475-N☆		G475☆474.3
CO08830☆OR □
G480-N☆		G480☆479.3
CO08831☆OR □
485-N☆		G485☆484.3
CO08832☆OR □
G490-N☆		G490☆489.3
CO08833☆OR □
G495-N☆		G495☆494.3
CO08834☆OR □
G500-N☆		G500☆499.3
■ JIS dimension identification code: Type + material specification + Dimension specification + Appearance grande.
 
JIS callout
number		Groove dimension (according to JIS specification)
Dimension 'd'Dimension 'D'Dimension 'G' (tolerance +0.25
                                           0      )		Dimension
'H'		Dimension
'R'		Maximum
misalignment (TIR)
of center D and center 'd'
for dynamic or cylindrical application
dToleranceDToleranceNo backup ringOne side backup ringBoth sides backup ringsH±0.05Maximum value
G25250
- 0.10		30 +0.10
0		4.15.67.32.40.70.08
G303035
G353540
G404045
G454550
G505055
G555560
G606065
G656570
G707075
G757580
G808085
G858590
G909095
G9595100
G100100105
G105105110
G110110115
G115115120
G120120125
G125125130
G130130135
G135135140
G140140145
G145145150
G1501500
- 0.10		160 +0.10
0		7.5911.54.60.80.10
G155155165
G160160170
G165165175
G170170180
G175175185
G180180190
G185185195
G190190200
G195195205
G200200210
G205☆205215
G210210220
G215☆215225
G220220230
G225☆225235
G230230240
G235☆235245
G240240250
G245☆245255
G250250260
G255☆255265
G260260270
G265☆2650
- 0.10		275 +0.10
0		7.5911.54.60.80.10
G270270280
G275☆275285
G280280290
G285☆285295
G290290300
G295☆295305
G300300310
G305☆305315
G310☆310320
G315☆315325
G320☆320330
G325☆325335
G330☆330340
G335☆335345
G340☆340350
G345☆345355
G350☆350360
G355☆355365
G360☆360370
G365☆365375
G370☆370380
G375☆375385
G380☆380390
G385☆385395
390G☆390400
G395☆395405
G400☆400410
G405☆405415
G410☆410420
G415☆415425
G420☆420430
G425☆425435
G430☆430440
G435☆435445
G440☆440450
G445☆445455
G450☆450460
G455☆455465
G460☆460470
G465☆465475
G470☆470480
G475☆475485
G480☆480490
G485☆485495
G490☆490500
G495☆495505
G500☆500510

30
45
60
  1. 1
Part Number
CO0203A
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipI.D. d
(Ø) 		Thickness W
(mm) 		Material Environment, application O.D.
(Ø) 		Old JIS Bearing Number Material (JIS Symbol) Hardness Model Number Notation

₹ 63.99

1 Piece(s) 5 Day(s) or more 39.43.1Nitrile RubberMineral Oil Resistant45.6G401 Type A70Type Dimension Code

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  1. 1
 

Basic Information

Types G (For Fixing)

Please check the type/dimensions/specifications of the part CO0203A in the O-Ring JIS B 2401 - G Series (Static application) series.

Product variants

Part Number
CO0201A
CO0201B
CO0201L
CO0203B
CO0203L
CO0203U2
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipI.D. d
(Ø) 		Thickness W
(mm) 		Material Environment, application O.D.
(Ø) 		Old JIS Bearing Number Material (JIS Symbol) Hardness Model Number Notation

₹ 51.99

1 Piece(s) Same day

Stock

29.43.1Nitrile RubberMineral Oil Resistant35.6G301 Type A70Type Dimension Code

₹ 64.93

1 Piece(s) 5 Day(s) or more 29.43.1Nitrile RubberMineral Oil Resistant35.6G301 Type B90Type Dimension Code

₹ 81.00

1 Piece(s) 5 Day(s) or more 29.43.1Silicon RubberHeat Resistant35.6G30Class 4 C70Type Dimension Code

₹ 71.62

1 Piece(s) 5 Day(s) or more 39.43.1Nitrile RubberMineral Oil Resistant45.6G401 Type B90Type Dimension Code

₹ 95.73

1 Piece(s) 5 Day(s) or more 39.43.1Silicon RubberHeat Resistant45.6G40Class 4 C70Type Dimension Code

₹ 190.82

1 Piece(s) 5 Day(s) or more 39.43.1Fluorine RubberHeat Resistant45.6G40Class 4 D70Type Dimension Code

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