Fiberglass insulator SR1948
polymer

Fiberglass insulator - SR1948 - Essentra Components - polymer
Fiberglass insulator - SR1948 - Essentra Components - polymer
Fiberglass insulator - SR1948 - Essentra Components - polymer - image - 2
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Characteristics

Material
fiberglass, polymer

Description

Product Details
Shoulder Washers, also known as Insulation Sleeves or Shoulder Bushes, are designed to provide electric and heat insulation for assemblies where this is a fundamental requirement. A type of stepped washer, they are made from a variety of materials and colours, these products are self-lubricating, corrosion and abrasion resistant.
  • The step washer offering features shoulder bushes made from Nylon 6/6. These nylon sleeve washers are a self-lubricating option, great for anything that pivots or rotates. They have a low coefficient of friction, and are resistant to moisture, dirt and most chemicals.
  • Countersunk sleeve options are frequently applied in electro technical environments, and are compulsory by law in many countries. They prevent electrical corrosion with countersunk head screws.
  • Insulation Sleeves are available in natural Nylon 6 or black Nylon with a glass-fibre compound. These sleeves prevent contact with conducting materials, prevent parts from vibrating loose, and accurately locate and space assemblies.
  • The range extends with Locking and Sealing Washers. Locking and sealing types are sold separately.
  • Screw Insulators are available in a range of sizes, as well as high temperature options. High temperature insulators also have options made from Polyphenylene Sulfide (PPS).
  • Flame resistance to a UL94 V2 standard.

Materials
  • 25% Glass Filled Nylon 6
  • 40% Glass Filled PPS
  • Nylon
  • Nylon 6/6
  • PA

Colours
  • Black
  • Natural

Available Dimensions (examples)
  • Flange Height: 0.02 in to 1.28 in (Imperial), 0.5 mm to 32.5 mm (Metric)
  • Length Under Head: 0.157 in, 0.394 in (Imperial), 4.0 mm, 10.0 mm (Metric)
  • Minimum Outside Diameter: 0.118 in to 3.858 in (Imperial), 3.0 mm to 98.0 mm (Metric)
  • Maximum Outside Diameter: 0.181 in to 2.244 in (Imperial), 4.6 mm to 57.0 mm (Metric)

Key Features
  • Electric and heat insulation
  • Self-lubricating
  • Corrosion and abrasion resistant
  • Low coefficient of friction
  • Resistant to moisture, dirt, and most chemicals
  • Flame resistance to UL94 V2
  • Available in a wide range of sizes and materials

Caractéristiques / Spécifications techniques
  • Product type: Shoulder Washers / Insulation Sleeves / Shoulder Bushes
  • Materials: Nylon 6/6, Nylon 6, Black Nylon with glass-fibre, Polyphenylene Sulfide (PPS), PA
  • Colours: Black, Natural
  • Flame resistance: UL94 V2
  • Applications: Electric and heat insulation, vibration prevention, spacing and locating assemblies, corrosion prevention
  • Available with locking and sealing options
  • Available in a wide range of dimensions (see above)

Catalogs

Exhibitions

Meet this supplier at the following exhibition(s):

HILLHEAD
HILLHEAD

23-25 Jun 2026 Buxton (United Kingdom)

  • More information
    Electra Mining Africa
    Electra Mining Africa

    7-07 Sep 2026 Johannesburg (South Africa)

  • More information

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    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.