NUT,PLAIN,CASTELLATED,HEX (P/N an320-20) - New Surplus
P/N: an320-20
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 | 1 Available |
Product Description
The AN320-20 is a steel hex castellated shear nut conforming to AN320 standard (superseded by NASM320). This nut features a hexagonal body with castellated (slotted) top for positive locking via cotter pin. Designed for shear-loaded joints with drilled-shank fasteners, commonly used in aircraft control linkages and structural assemblies.
Installation requires aligning a castellated slot with the bolt-end hole, then securing with a cotter pin per maintenance manual specifications. The castellated design prevents loosening from vibration and flight loads.
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 NUT,PLAIN,CASTELLATED,HEX (P/N an320-20)?
The AN320-20 is a steel hex castellated shear nut conforming to AN320 standard (superseded by NASM320). This nut features a hexagonal body with castellated (slotted) top for positive locking via cotter pin.
Does the an320-20 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The NUT,PLAIN,CASTELLATED,HEX 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 an320-20 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 an320-20.
Can I order the an320-20 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The NUT,PLAIN,CASTELLATED,HEX is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.