LOCK WASHER (P/N es4207) - New Surplus
P/N: es4207
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 es4207 is a helical-spring lock washer designed to prevent bolt and nut loosening under vibration. This steel washer sits beneath a bolt head or nut, providing continuous spring tension that maintains clamp load during aircraft operation. Conforms to NASM35338 specifications for aviation fastener applications.
Commonly used in non-structural assemblies such as avionics equipment mounts, instrument panel installations, and accessory attachments. Place a plain washer underneath the lock washer to protect component surfaces. Not suitable for primary structural applications per FAA guidance.
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 LOCK WASHER (P/N es4207)?
The es4207 is a helical-spring lock washer designed to prevent bolt and nut loosening under vibration. This steel washer sits beneath a bolt head or nut, providing continuous spring tension that maintains clamp load during aircraft operation.
Does the es4207 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The LOCK WASHER 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 es4207 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 es4207.
Can I order the es4207 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The LOCK WASHER is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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