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O-Rings - G Series (NGA50)

O-Rings - G Series:Related Image
O-Rings - G Series:Related Image
・Materials
Type[ M ]Material[ H ]Hardness (JIS Hs)ColorOperating Temperature RangeJIS SymbolApplicationsFeature
NGANitrile Rubber70±5Black-30~100°CClass 1 AMineral Oil ResistantMost representative material with superior oil / abrasion resistance and heat stability.
NGBNitrile Rubber90±5Black-25~100°CClass 1 BHeat ResistantIt has almost equivalent characteristics with the class 1A besides higher hardness and better pressure resistance.
NGSWSilicon Rubber50±5Milky White-50~200°C-Having excellent high and low temperature resistances, this material has the widest range of operating temperatures among synthetic rubbers.
It is suitable for food-related applications.
NGSSilicon Rubber70±5Dark Blue[ ! ]-50~200°CClass 4 CHeat Resistant
NGFFluoro Rubber70±5Black-15~200°CClass 4 DHeat ResistantBest in oil / chemical resistance and heat stability as synthetic rubber. Suitable for a wide range of applications.
[ ! ]NGS is colored with dark blue next to black.

Specifications

Part Number
NGA25
■JIS B 2401 G Series (For Mounting)
Part NumberJIS
Nominal Number
WI.D.Matching Material
TypeNo.doNGA, NGB ToleranceNGSW, NGS ToleranceNGF TolerancedToleranceDTolerance
NGA
(Nitrile Rubber, Black)

NGB
(Nitrile Rubber, Black)

NGSW
(Silicon Rubber,
Milky White)

NGS
(Silicon Rubber,
Dark Blue)

NGF
(Fluoro Rubber, Black)
25G253.1±0.124.4 ±0.25±0.38±0.30250
-0.10
30+0.10
0
30G3029.4 ±0.29±0.44±0.353035
35G3534.4 ±0.33±0.50±0.403540
40G4039.4 ±0.37±0.56±0.454045
45G4544.4 ±0.41±0.62±0.504550
50G5049.4 ±0.45±0.68±0.545055
55G5554.4 ±0.49±0.74±0.595560
60G6059.4 ±0.53±0.80±0.646065
65G6564.4 ±0.57±0.86±0.696570
70G7069.4 ±0.61±0.92±0.747075
75G7574.4 ±0.65±0.98±0.787580
80G8079.4 ±0.69±1.04±0.838085
105G105104.4±0.87-±0.87105110
120G120119.4±0.98±0.98120125
145G145144.4±1.16±1.16145150
170G1705.7±0.1169.3±1.33±1.33170180
[ ! ] Areas: For orders of 1~9 pc(s),), Small Order Charge will be added to Unit Price.

Part Number 

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Part Number
NGA50
Part NumberVolume DiscountDays to Ship Material Application Material Code, JIS Wire diameter W
(mm)
I.D. do (or d)
(Ø)
JIS Nominal Number
Available

Same day

Stock

Nitrile RubberMineral Oil Resistant / Heat Resistant / Abrasion ResistantA Type A3.149.4G50

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Please check the type/dimensions/specifications of the part NGA50 in the O-Rings - G Series series.

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