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  • 1.378" Inch Metal Flanged Double Lip Silicone Oil Seal w/Metal Guard 3543
  • 1.378" Inch Metal Flanged Double Lip Silicone Oil Seal w/Metal Guard 3543
  • 1.378" Inch Metal Flanged Double Lip Silicone Oil Seal w/Metal Guard 3543
  • 1.378" Inch Metal Flanged Double Lip Silicone Oil Seal w/Metal Guard 3543
  • 1.378" Inch Metal Flanged Double Lip Silicone Oil Seal w/Metal Guard 3543

    • 1.378" Inch Metal Flanged Double Lip Silicone Oil Seal w/Metal Guard 3543

    National Oil Seals

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    SKU:
    NAT 3543 SEAL
    UPC:
    UPC 053893464459
    Weight:
    0.12 LBS
    Shaft size:
    1.378"
    Seal outer diameter:
    2.167"
    Seal width:
    0.577"
    Seal type & style:
    57 (Double lip)
    Lip material:
    H (Silicone)
    Case material:
    Redicoat® on metal case
    Temperature range:
    -73° ~ 163°C (-100° ~ 325°F)
    Spring retained:
    Yes
    Seal series:
    3000
    Hardness:
    70 Durometer
    Notable feature:
    Protective metal trash guard
    Denoted measurement:
    Inch
    Shown in catalog:
    Yes

    Product Description

  • Silicone (Lip code: H) lip material has a wide temperature range in which it can operate and is typically selected for high to low temperature ranges as well as low friction applications.
  • The high lubricant absorbency of silicone minimizes friction and wear; however it has poor compatibility with oxidized oils, some extreme pressure additives and abrasive contaminants.
  • Silicone should not be used in dry running applications as the lip will easily tear and/or wear its surface down prematurely.

  • Many of Nationals metal cased seals are offered with Redi-Coat® rubberized coating which is applied over the seals bare metal case and helps fill in any minor bore imperfections upon installing the new seal.

  • Please note that not all product images are representative of the item being shown but are similar in appearance. Please refer to the seals technical specifications sheet provided in the image carousel for absolute confirmation before ordering.

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    Custom Field

    Shaft size 1.378"
    Seal outer diameter 2.167"
    Seal width 0.577"
    Seal type & style 57 (Double lip)
    Lip material H (Silicone)
    Case material Redicoat® on metal case
    Temperature range -73° ~ 163°C (-100° ~ 325°F)
    Spring retained Yes
    Seal series 3000
    Hardness 70 Durometer
    Notable feature Protective metal trash guard
    Denoted measurement Inch
    Shown in catalog Yes

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