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NATIONAL 7188S Specifications
Housing Bore (Inch)0.999
Housing Bore (MM)25.370
Inside Diameter0.625 In.
Inside Diameter15.880 MM
MaterialNitrile
Outside Diameter1.003 In.
Outside Diameter25.480 mm
Outside Diameter (Inch)1.003
Outside Diameter (MM)25.480
Part DescriptionOil Seal
Sealing MaterialNitrile
Series7000
Shaft (Inch)0.625
Shaft (MM)15.880
Thickness0.250 In.
Thickness6.350 MM
Type33
Unit of DimensionInch
Width (inch)0.250
Width (MM)6.350
NationalŪ Oil Seals & Bearings has built a reputation as one of the most respected names in the industry. They have offered premium sealing and wheel end solutions for more than 75 years. Their design and engineering teams keep pace with the industry and provide advanced solutions for today's vehicles.

Features & Benefits:
  • Design type: spring loaded; single-lip
  • Temperature range: -40°F to 225°F / -40°C to 107°C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
OEM / Interchange Numbers: 12305331, 1733603, 1949350, 2267129, 2448142, 3643321, 380769, 5P6859, 5P8216, 8H9180, 8T2604, 94267

NATIONAL Warranty Information:
12 Months