SCREW,SELF-LOCKING (P/N nas1189-3p4) - New Surplus

The NAS1189-3P4 is a self-locking, 100-degree countersunk screw manufactured from alloy steel with UNJ threads conforming to NAS1189 aerospace fastener specifications. The screw features a built-in locking patch that provides vibration resistance without requiring separate locknuts. Designed for flush attachment of aircraft access panels, skin fastening, and structural applications where a low-profile head is essential.

The countersunk design allows the screw head to sit flush with panel surfaces, maintaining aerodynamic contour and reducing snag hazards. Installation requires torquing per aircraft maintenance manual specifications and NAS1189 standards to ensure proper locking engagement.

What is the SCREW,SELF-LOCKING (P/N nas1189-3p4)?

The NAS1189-3P4 is a self-locking, 100-degree countersunk screw manufactured from alloy steel with UNJ threads conforming to NAS1189 aerospace fastener specifications. The screw features a built-in locking patch that provides vibration resistance without requiring separate locknuts.

What conditions is the nas1189-3p4 available in?

The nas1189-3p4 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the nas1189-3p4?

The nas1189-3p4 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the nas1189-3p4?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.