P/N: ms21042-l4
Category: Fasteners & Hardware
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
| Condition | Stock |
|---|---|
| New Surplus | 126 Available |
The MS21042-L4 is a self-locking hex nut with an integral flange washer, conforming to NASM21042 specifications. This size -4 (1/4-28) nut features steel construction and reduced-height geometry that provides prevailing-torque retention in high-vibration environments. The all-metal locking mechanism maintains fastener security without adhesive, operating reliably up to 450°F.
Commonly used on airframe and engine attachments where vibration resistance is critical. Installation requires torque to specified limits per NASM21042 and MS33588 guidance.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
The MS21042-L4 is a self-locking hex nut with an integral flange washer, conforming to NASM21042 specifications. This size -4 (1/4-28) nut features steel construction and reduced-height geometry that provides prevailing-torque retention in high-vibration environments.
Aircraft hardware is manufactured to military and aviation specifications. The NUT conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the ms21042-l4.
Yes, we sell hardware in various quantities from single units to bulk lots. The NUT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.