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AS568-126 SE70 EPDM FDA 70 Duro Square O-Ring


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Min Qty:  4
  • Model: SE70126
  • 105 in Stock
  • 1-3/8"ID X 1-9/16"OD X 3/32"CS
  • Actual: 1.362"ID X 1.56"OD X 0.099"CS
  • 34.59mm ID X 39.61mm OD X 2.51mm CS

1-3/8"ID X 1-9/16"OD X 3/32"CS

Actual: 1.362"ID X 1.56"OD X 0.099"CS

Square O-rings - Square Cut Washer Rings

Square-rings are square cross-section seals designed to be interchangeable with standard AS568 O-Rings. Complete interchangeability within standard glands is assured in most applications.

Description - EPDM (Ethylene Propylene)

EPDM is a copolymer of ethylene and propylene. Ethylene propylene diene monomer (EPDM) is produced using a third monomer and is particularly useful when sealing phosphate-ester hydraulic fluids and in brake systems that use fluids having a glycol base. Heat resistance-Up to 300°F (149°C) (max. 400°F (204°C) in water and/or steam).


  • Ethylene Propylene

Chemical resistance:

  • Hot water and steam up to 300°F (149°C) with special compounds up to 400°F (204°C)
  • Glycol based brake fluids up to 300°F (149°C)
  • Many organic and inorganic acids
  • Cleaning agents, soda and potassium alkalis
  • Phosphate-ester based hydraulic fluids (HFD-R)
  • Silicone oil and grease
  • Many polar solvents (alcohols, ketones, esters)
  • Ozone, aging and weather resistant.

Recommended Use:

  • Sunlight, Ozone, Weathering
  • Hot Water and Steam
  • Auto / Aircraft Brake Fluids
  • Some Acids and Bases
  • Ketones and Alcohols
  • Plumbing

Not Recommended For:

  • Petroleum Oils
  • Fuels
  • Mineral oil products

Mechanical Properties:

  • Good Wear Resistance
  • Good Comp. Set Resistance
  • Moderate Short-Term Resilience
  • Good Permeation Resistance

Operating temperature: -60° to +250°F