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SAE AMSR25988B

Name: SAE AMSR25988B PDF | Request Standard
SKU: 5d5c92612c54

Rubber: Fluorosilicone (FVMQ), Engine Oil / Fuel-Resistant, For Seals in Engine Oil Systems/Fuel Systems

Standard by SAE International, 2023-06-27

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SAE AMSR25988B.PDFSecure PDF
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Language: English
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About This Item

This material has resistance to diester-based engine oil (MIL-PRF-7808) and fuel, but usage is not limited to such applications. This material is not suitable for use in synthetic phosphate ester based hydraulic fluids (AS1241) or helicopter transmission lubricating oils (DOD-PRF-85734, MIL-PRF-32538). For gas turbine engine lubricating oils (AS5780, MIL-PRF-23699), resistance varies by class and should be evaluated individually (see Note regarding high performance oils). This material has a typical service temperature range of -70 to +392 °F (-56.7 to +200 °C) for Class 1 and Class 2 and -70 to +437 °F (-56.7 to +225 °C) for Class 3. The service temperature range of the material is a general temperature range, but the presence of particular fluids and specific design requirements may modify this range. Each application should be considered separately. It is the responsibility of the user to determine that this specification is appropriate for the environments (temperature range, fluids exposure, etc.) in which it is sought to be used. Superseding MIL-DTL-25988 and adding a Qualified Product List for Type I materials. Updating to 7xxx template for Type I and 3xxx template for Type II where possible.

SKU: 5d5c92612c54

Publication Date: 2023-06-27

Standard Status: latest

Publisher: SAE International

Document Type: Aerospace Material Specification

Subject: Engine lubricants, Fuel systems, Elastomers, Seals and gaskets, Materials properties, , , ,

Official SAE: Doi link

This Version: AMSR25988B (2023-06-27)
Previous Version: AMSR25988A (2017-08-04)
Previous Version: AMSR25988 (1998-03-01)

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