Product Description
The Heli-Coil® NAS1130-4-10 is a tangless, free-running wire thread insert precision-manufactured from 304 stainless steel. Designed to conform to strict National Aerospace Standards (NAS1130), this insert creates strong, permanent 1/4-28 UNF fine internal threads in low-density parent materials like aluminum, magnesium, and composites. Featuring an advanced tangless design, it completely eliminates tang break-off and removal steps, preventing foreign object debris (FOD) hazards while streamlining assembly. Its diamond-shaped helical coil structure distributes engagement loads evenly, providing exceptional corrosion resistance and protecting tapped holes against thread stripping and galling.
Tangless Wire Construction eliminates tang removal and vacuum retrieval steps, reducing installation time and eliminating foreign object debris (FOD) risks.
304 Stainless Steel Material provides outstanding tensile strength, long-term durability, and superior corrosion resistance.
Free-Running Thread Profile permits standard male fasteners to thread smoothly through the insert without friction locking.
Aerospace NAS1130 Compliance engineered to satisfy rigorous military and commercial aerospace standards for high-reliability joints.
1/4-28 UNF Fine Threading reinforces lightweight metal components or repairs damaged fine internal threads in high-precision structural assemblies.
NASM - Products meet Military Specifications (MS) and National Aerospace Standards (NAS) requirements as applicable and are shipped with appropriate documentation.
Product Specs
- SKU:
- NAS1130-4-10
- Thread Size (Inch):
- 1/4-28
- Thread:
- UNF
- Overall Insert Length (Decimal Inch):
- 0.250
- Tang:
- Tangless
- Material:
- 304 Stainless Steel
- Number of Free Coils:
- 5-1/4
- Length to Diameter Ratio:
- 1:1
