Reliability Online Automated Databook System (ROADS)

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Reliability Online Automated Databook System (ROADS) – All Databooks (NPRD EPRD FMD) Subscription

EPRD-2024 and NPRD-2023 datasets are now available through ROADS!

ROADS is a subscription service that provides easily searchable access to the following databooks directly in your web browser:

  • Nonelectronic Parts Reliability Data (NPRD) including the newly updated NPRD-2023, which presents field failure rate data for electrical assemblies and electromechanical/ mechanical parts and assemblies.

  • Electronic Parts Reliability Data (EPRD 2024), which contains field failure rate data for commercial and military electronic components for use in reliability analyses.

  • Failure Mode / Mechanism Distributions (FMD) , which presents field failure mode and mechanism distribution data on a variety of electrical, mechanical, and electromechanical parts and assemblies.

Product Description

This interactive online tool provides efficient search and retrieval of all information contained in the EPRD, NPRD, and FMD hardcopy databooks. Containing a built-in search engine, information may be searched on part number, part categories or descriptions, manufacturer, and National Stock Number (NSN). Additional filters are available to specify application environment and quality levels.


ROADS can be accessed with a web browser anywhere with an Internet connection. Please note, ROADS is not a PDF of the databooks.