COTTER PIN (P/N ms4665-157) - New Surplus
P/N: ms4665-157
Category: Fasteners & Hardware
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 9 Available |
Product Description
The MS4665-157 is a steel cotter pin designed to lock castellated nuts and clevis pins in aircraft structural and flight-control assemblies. After inserting the pin through the fastener hole, the split prongs bend outward to create positive mechanical retention that prevents loosening from vibration. This MS24665-compliant fastener is commonly used in control linkages, landing gear connections, and engine mount applications where reliable locking is critical.
Installation follows aircraft maintenance manual procedures and FAA AC 43.13-1B guidance. Replace the cotter pin after each removal to maintain security.
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.
Frequently Asked Questions
What is the COTTER PIN (P/N ms4665-157)?
The MS4665-157 is a steel cotter pin designed to lock castellated nuts and clevis pins in aircraft structural and flight-control assemblies. After inserting the pin through the fastener hole, the split prongs bend outward to create positive mechanical retention that prevents loosening from vibration.
Does the ms4665-157 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The COTTER PIN 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 ms4665-157 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 ms4665-157.
Can I order the ms4665-157 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The COTTER PIN is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.