Structural Design and Test Factors of Safety for Spaceflight Hardware

Document Number: 



B w/Change 2

Document Date: 




Revalidated or Reaffirmed Date: 


Change Date: 


Change Number: 


NASA Endorsement Date: 


Next 5-Year Review Date: 



  • NASA

Document Scope: 

The purpose of this NASA Technical Standard is to establish NASA structural design and test factors, as well as service life factors to be used for spaceflight hardware development and verification. The primary objective of this NASA Technical Standard is to define factors which ensure safe and reliable structural designs. The secondary objective is to reduce space project costs and schedules by enhancing the commonality of use of hardware designs among NASA flight projects, Centers, and their contractors. The criteria in this NASA Technical Standard are to be considered as minimum acceptable values unless adequate engineering risk assessment is provided that justifies the use of lower values.

Export Control/Distribution Authorization: 

Public -- Standard is cleared for public accessibility on the internet.

Download Current Revision: 

Superseding Document: 

NASA-STD-5001B Change 1

Document History: 

Application Notes - explanatory text of use/application of standard NOT site Feedback

Lessons Learned

IS-0001 Lessons Learned From Challenger
LLIS-0682 Design and Manufacturing Guideline for Aerospace Composites
LLIS-0712 Design Considerations for Fluid Tubing Systems
LLIS-0735 Material Selection Practices
LLIS-0819 Structural Stress Analysis
NESC-0006 Independent Technical Assessment of the Orbiter LH2 Feedline Flowliner Cracking Problem