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MS/NAS

Rivnut® Flat Head Round Body

The flat head round body Rivnut® is the original fastener designed to meet the MS 27130 specifications.

  • Smooth round body to prevent stress fracturing under dynamic loads
  • Closed end to seal threads
  • Keyed head to prevent rotation with thread locking mating screws

Open End Standard
Rivnut Flat Head Round Body - Open End Standard

    

Closed End Standard
Rivnut Flat Head Closed End Standard
 

    

Open End Keyed
Rivnut Flat Head Round Body - Open End Keyed 

   

Closed End Keyed
Rivnut Flat Head Round Body - Close End Keyed

Rivnut® Countersunk Round Body

The countersunk head round body is the original fastener designed to meet the MS 27130 specification.

  • Countersunk head for flush installation
  • Closed end to seal threads
  • Keyed head to prevent rotation with thread locking mating screws

 Open End Standard
Rivnut Countersunk Round Body - Open End Standard

  

Closed End Standard
Rivnut Countersunk Round Body - Closed End Standard

  

Open End Keyed
Rivnut Countersunk Round Body - Open End Keyed

  

Closed End Keyed
Rivnut Countersunk Round Body - Closed End Keyed

Rivnut® Unilock Flat Head Round Body

The Unilock® round body flat head keyed Rivnut® features a mechanical thread lock feature to meet MIL-N-25027 for lock type nuts.

  • 15 cycle thread locking
  • Keyed head to prevent rotation
  • Smooth body to prevent stress fracturing under dynamic loads

Rivnut® Unilock Countersunk Round Body

The Unilock® round body countersunk head keyed Rivnut® features a mechanical thread lock feature to meet MIL-N-25027 and a countersunk head for flush installation.

  • 15 cycle thread locking
  • Keyed head to prevent rotation
  • Countersunk head for flush installation

Specifications
The Rivnut® fasteners featured on this site meet the requirements of NAS1329, NAS1330, MS 27130 standards, and a wide range of ordinance drawings. NAS1329 and NAS1330 standards include Rivnut® fasteners with thread-locking requirements to MIL-N-25027. Rivnut® fasteners meet these requirements.

MIL-S-7742 Screw threads, standard aeronautical.
ASTM B316 Wire, aluminum.
ASTM A576 Wire, steel.
ASTM B134 Wire, brass.
ASTM A276 Wire, steel, corrosion-resisting.
ASTM A580 Wire, steel, corrosion-resisting.
MIL-A-8625 Surfaces anodic coatings, for aluminum and aluminum alloys.
QQ-P-416 Plating, cadmium (electrodeposited).
ASTM B633 Zinc coating, electrodoposited.
QQ-P-35 Passivation, treatments for austenic, ferretic, and martensetic corrosion-resisting steel (fastening devices).
ASTM A752 Seam-free aircraft quality steel.
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