NAS1130-08-15 - Screw Threaded Insert by Helicoil Stanley Engineered Fastening

The Heli-Coil NAS1130-08-15 (Heli-Coil Part Number: T1185-08C246) is a military-standard tangless free-running wire thread insert engineered for high-reliability aerospace, defense, and precision electronics applications. Precision-wound from high-tensile, cold-drawn 304 stainless steel wire with a uniform diamond cross-section, this tangless insert eliminates the need for tang break-off and retrieval operations, effectively preventing foreign object damage (FOD) hazards in sensitive assemblies. Featuring engineered notch driving points at both ends, its bi-directional design allows rapid, non-destructive installation or removal from either direction without indexing. The free-running helical coil provides smooth fastener engagement while evenly dispersing static and dynamic stresses across the tapped thread network, delivering exceptional stripping protection and long-term joint fatigue strength.

Tangless Foreign Object Damage (FOD) Prevention Advanced tangless design eliminates tang break-off and retrieval procedures, safeguarding critical aerospace and electronic systems from loose metallic debris.

Bi-Directional Fast Installation Reversible profile with drive notches on both ends allows the insert to be oriented and driven from either direction without indexing errors.

Austenitic Stainless Steel Construction Manufactured from work-hardened AS7245 304 stainless steel wire to build corrosion-resistant internal threads that prevent stripping, galling, and wear in soft host materials.

Balanced Dynamic Load Distribution Flexible helical coils adapt to pitch and angle tolerances in tapped holes, dispersing concentrated tensile forces evenly across all engaged threads.