- Nut
- Self-Locking
- Plate
- Two Lug
- Floating
- Variable Counterbore
- Replaceable Nut Element
- 125 KSI FTU
- 450℉ and 800℉
Interchangeability Tag: NAS1791
NA2397 Stressnut / NAS1791
- Stressnut
- Floating
- Expanding
- SAE Replaceable Nut Element
- Variable Counterbore
- Stress Relieving Fastener