PEI Ultem Metric Flat Washers - ISO 7089

SKU: PEIWAM2
PEI/Ultem Material Data Sheet
Regular price $1.17 inc. VAT
Regular price -29% $1.65 Sale price $1.17 inc. VAT

These PEI washers have excellent flame resistance, low smoke generation, and excellent dielectric properties making them ideal for aerospace, electronics, semiconductor, and industrial applications where conventional plastic washers may be unsuitable.

Key Features

  • Manufactured from high-performance PEI (Ultem)
  • Conforms to ISO 7089 specifications
  • Excellent mechanical strength and rigidity
  • Continuous service temperature up to 339.8°F 
  • Outstanding dimensional stability
  • Inherently flame-retardant with low smoke emission
  • Good chemical resistance
  • Reliable load distribution and surface protection
  • Electrically insulating and non-conductive
  • Lightweight, corrosion-resistant, and non-magnetic

Available in various metric sizes. 

  • Type Washers
  • SKU PEIWAM2
  • Material Polyetherimide (PEI)
  • Color
    • Natural/Semi Transparent
  • Measurement System Metric
  • ISO Standard ISO 7089
  • DIN Standard DIN 125 A

Material: PEI (Polyethylenimine) - Ultem

Max Temperature: 340°F

Flame Resistance: UL94 V-0

Tensile Strength: 110MPa

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Product Dimensions

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PEI (Polyethylenimine) - Ultem

Properties and applications

  • Properties

    - High Continuous Use Service Temperature of 340ºF
    - High Tensile Strength of 110MPa
    - Excellent Creep Resistance
    - Low Moisture Absorption

  • Common Applications

    - Aerospace
    - Medical Equipment
    - Telecommunications Equipment
    - Laboratory Instruments

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