MS21044N3 Self-Locking Nut – Nylon Insert | Aviation Grade Fastener
The MS21044N3 self-locking nut is a widely used aviation fastener designed to provide secure, vibration-resistant locking in critical aircraft applications. Featuring a nylon insert locking mechanism, this nut eliminates the need for lock washers or additional safety devices in many installations.
Manufactured to strict military (MS) specifications, the MS21044 series is trusted across general aviation, maintenance, and OEM environments for its reliability, consistency, and performance under demanding conditions.
Key Features
- Self-locking nylon insert – prevents loosening due to vibration
- 10-32 thread size – standard for many GA applications
- Lightweight construction – ideal for weight-sensitive aircraft systems
- Corrosion-resistant finish
- Reusable within limits (subject to torque inspection standards)
Typical Applications
- Airframe structures
- Interior panels and components
- Avionics mounting hardware
- Non-high-temperature zones
The MS21044N3 is commonly found across a wide range of aircraft including Cessna, Piper, Beechcraft, and experimental aircraft, making it a staple fastener for maintenance shops and aircraft owners.
Commonly Used With
- AN3 bolts (10-32 thread)
- AN960-10 washers
- MS20995 safety wire
Traceability & Certification
This product is supplied with full aviation-grade traceability, consistent with our sourcing standards across all aircraft parts. Documentation is physically included in the shipment for immediate reference and record-keeping.
✔ Manufactured by approved aerospace fastener manufacturers (e.g. Abbott Interfast LLC)
✔ Full lot and batch traceability available
✔ Documentation included with each shipment
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