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:
rion 32 (GDC 32), "Inspection of Reactor Coolant Pressure Boundary," requires (in part) that components that are part of the RCPB be designed to permit: a. Periodic inspection and testing of important areas and features to assess their structural leaktight integrity, and DRAFT Rev. 0 - April 1996 3.13-4 b. An appropriate material surveillance program for the reactor pressure vessel.12 11. Appendix B to 10 CFR Part 50, "Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Facilities," includes requirements applicable to threaded fasteners (reviewed under SRP Chapter 17) in the following subsections: a. Part VIII, "Identification and Control of Materials, Parts, and Components"; b. Part X, "Inspection"; c. Part XI, "Test Control"; and d. Part XV, "Nonconforming Materials, Parts, or Components."13 C. The scope of the staff's review includes the following: 1. Bolts, nuts, studs, washers, cap screws, machine screws, concrete anchors, hanger rods, U-bolts, and locking devices in seismic Category I SSCs, as defined in subsection C.1 of Regulatory Guide 1.29. Several issues related to threaded fasteners in general, or to certain types of threaded fasteners, are reviewed for other Standard Review Plan (SRP) sections, as described in the Review Interfaces subsection of this section. 2. Bolts, nuts, studs, washers, cap screws, machine screws, concrete anchors, hanger rods, U-bolts, and locking devices in those portions of SSCs for which continued function is not required but where failure could reduce the functioning of any seismic Category I SSCs to an unacceptable safety level, or could cause incapacitating injury to occupants of the control room. (This category will be referred to hereafter as "SC I-related." See subsection C.2 of Regulatory Guide 1.29.)14 3. Procedures and programs for each of the applications listed below: a. Threaded fastener applications in the RCPB and RCS, including the following: (1) Reactor head studs; (2) RCS internals; (3)