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SAE AMS7274

Revision J, May 1, 2014

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Rubber: Butadiene-Acrylonitrile (NBR) 65 to 75 Hardness, For Elastomeric Seals in Aircraft Engine Oil Systems



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Product Details:

  • Revision: Revision J, May 1, 2014
  • Published Date: May 2014
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 9
  • ANSI Approved: No
  • DoD Adopted: Yes

Description / Abstract:

Form

This specification covers a butadiene-acrylonitrile (NBR) rubber in the form of molded rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications.

Application

These products have resistance to hot-petroleum-based lubricating oil, but usage is not limited to such applications. Each application should be considered separately. This Butadiene-acrylonitrile (NBR) has a typical service temperature range of -67 to +302 °F (-55 to +150 °C) in engine oil.

The cross-section of such seals is usually not over 0.275 inch (6.98 mm) in diameter or thickness.

Safety - Hazardous Materials

While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.

AIA/NAS Aerospace Standards