Castellated (castle) nut, 5/8-18 thread. For AN10 bolts in the heaviest structural joints: main spar-to-fuselage, engine mount lugs, and main landing gear pivot pins. Cadmium plated alloy steel.
| Material | Alloy Steel |
| Finish | Cadmium Plated |
| Thread | 5/8-18 |
| Size | 5/8" |
| Pack Qty | 25 pieces |
| Spec Type | AN |
| Category | Nut |
Traceability & Certification — All AeroSpaceSpecBolt hardware is sourced from certified surplus. FAA Form 8130-3 Airworthiness Approval Tags and/or Certificate of Conformance documentation available on request. Parts are inspected prior to sale. Ships from Pembroke Pines, FL.
This hardware is the direct AN/MS/NAS equivalent for the following aircraft manufacturer callouts. Confirm with your A&P or refer to AC 43.13-1B before installation.
| OEM Part Number | Manufacturer | Aircraft Models |
|---|---|---|
| 0541010-1 | Cessna | C310, C402, C414 |
| 63210-10 | Piper | PA-34, PA-44, PA-46 |
Need a different OEM number? Search the full cross-reference →
Ships 1–2 business days. Questions? specbolt@polsia.app