t a  e 
REF NO. Part categories Parameter
NATIONAL : 1981 Main / Output Shaft Seal
  • Housing Bore (IN): 1.772 ; 
  • Housing Bore (MM): 45.000 ; 
  • Inside Diameter (IN): 1.181 ; 
  • Inside Diameter (MM): 30.000 ; 
  • Material: Nitrile ; 
  • Outside Diameter (IN): 1.781 ; 
  • Outside Diameter (MM): 45.230 ; 
  • Sealing Material: Nitrile ; 
  • Shaft Diameter (IN): 1.181 ; 
  • Shaft Diameter (MM): 30.000 ; 
  • Thickness (IN): 0.315 ; 
  • Thickness (MM): 8.000 ; 
  • Type: 35 ; 
  • Width (IN): 0.315 ; 
  • Width (MM): 8.000 ; 
BCA : NS1981 Main / Output Shaft Seal
  • External Markings: NAK TC 30 45 8 ; 
  • Housing Bore (IN): 1.772 ; 
  • Housing Bore (MM): 45 ; 
  • Inside Diameter (IN): 1.181 ; 
  • Inside Diameter (MM): 30 ; 
  • Material: Nitrile ; 
  • Outside Diameter (IN): 1.78 ; 
  • Outside Diameter (MM): 45.2 ; 
  • Sealing Material: Nitrile ; 
  • Thickness (IN): 0.315 ; 
  • Thickness (MM): 8 ; 
BCA : NS223840 Main / Output Shaft Seal
  • External Markings: 38 x 58 x 8 ; 
  • Housing Bore (IN): 2.283 ; 
  • Housing Bore (MM): 58 ; 
  • Inside Diameter (IN): 1.48 ; 
  • Inside Diameter (MM): 37.6 ; 
  • Material: Nitrile ; 
  • Outside Diameter (IN): 2.289 ; 
  • Outside Diameter (MM): 58.1 ; 
  • Seal Case Material: SAE 1070 ; 
  • Sealing Surface Material: Nitrile ; 
  • Shaft Diameter (IN): 1.496 ; 
  • Shaft Diameter (MM): 38 ; 
  • Spring Material: SAE 1008 ; 
  • Width (IN): 0.315 ; 
  • Width (MM): 8 ; 
WJB / INMOTION PARTS : WS1981 Main / Output Shaft Seal
  • External Markings: NAK TC 30 45 8 ; 
  • Housing Bore: 45mm ; 
  • Material: Nitrile ; 
  • Outside Diameter: 45.2mm ; 
  • Shaft Diameter: 30mm ; 
  • Thickness: 8mm ; 
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