Document: NUREG-0800
Document ID: ec05e779-56d2-4f40-be68-9fceb91114ab
Document Type: srp
Title: THREADED FASTENERS1
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070293.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.13
CFR Part: 
CFR Title: 

Content:
ent, return-to-service; and (3) Troubleshooting. f. Failure Analysis The review covers the adequacy of procedures and programs for failure analysis of threaded fasteners and joints relative to each of the following: (1) Records and trends of failures or problems, and (2) Tracking and actions to resolve problems or failures as reported in industry. g. Cognizant Engineer The assignment and duties of a cognizant engineer or engineering group familiar with the problems and procedures involving threaded fasteners, as described in EPRI NP-5067, "Good Bolting Practices," are reviewed. 16 5. Staff concerns related to threaded fasteners used in nuclear power plant applications are described in NUREG-0943, "Threaded-Fastener Experience in DRAFT Rev. 0 - April 1996 3.13-8 Nuclear Power Plants," Generic Letter 91-17, "Bolting Degradation or Failure in Nuclear Power Plants," and NUREG-1339, "Resolution of Generic Safety Issue 29: Bolting Degradation or Failure in Nuclear Power Plants," and are summarized in Volume 1 of EPRI NP-5769, "Degradation and Failure of Bolting in Nuclear Power Plants." The staff reviews the procedures and programs developed by the applicant to ensure that these issues are addressed.17 6. The review covered by this SRP section supplements the reviews of SSCs in which the fasteners are installed. For the most part, fastener design (including loads, configuration, and arrangement) is covered by the review of the SSC in which the fastener is contained. However, some generic aspects of fastener design (e.g., preloading, material compatibility, corrosion) may also be reviewed under this SRP section.18 D. A bibliography that includes pertinent references and standards is provided in Appendix A attached to this SRP section.19 Review Interfaces EMCB will coordinate other branch evaluations that interface with the overall review of threaded fasteners, as follows:20 1. The EMCB reviews subjects related to threaded fastener materials and materials in contact with