SCREW, ROUND HEAD (P/N ln9139m4x10) - New Surplus

The ln9139m4x10 is a metric round head screw conforming to LN 9139 aerospace standard. The M4 × 10 designation specifies a 4mm thread diameter and 10mm length for installation into tapped holes or use with mating nuts. Steel construction provides durability in structural and mechanical fastening applications.

Commonly used in Airbus Helicopters BK117 airframe assemblies for attaching components, panels, and structural elements. Installation requires verification against the aircraft's Illustrated Parts Catalog and adherence to applicable maintenance manual torque specifications.

What is the SCREW, ROUND HEAD (P/N ln9139m4x10)?

The ln9139m4x10 is a metric round head screw conforming to LN 9139 aerospace standard. The M4 × 10 designation specifies a 4mm thread diameter and 10mm length for installation into tapped holes or use with mating nuts.

Does the ln9139m4x10 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SCREW, ROUND HEAD conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the ln9139m4x10 manufactured from?

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 ln9139m4x10.

Can I order the ln9139m4x10 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The SCREW, ROUND HEAD is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.