NUT ASSY TUBE COUPL (P/N an-818) - New Surplus
P/N: an-818
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 AN-818 is an Air Force-Navy coupling nut (B-nut) designed for 37° flared tube fittings in aircraft fuel and hydraulic systems. This nut secures a metal-to-metal seal when paired with an AN819 sleeve and installed onto matching AN male fittings. Available in aluminum or corrosion-resistant steel by dash suffix.
Installation requires the AN819 sleeve and proper torque per the applicable aircraft maintenance manual to ensure leak-free connections in pressurized fluid lines.
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 ASSY TUBE COUPL (P/N an-818)?
The AN-818 is an Air Force-Navy coupling nut (B-nut) designed for 37° flared tube fittings in aircraft fuel and hydraulic systems. This nut secures a metal-to-metal seal when paired with an AN819 sleeve and installed onto matching AN male fittings.
Does the an-818 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The NUT ASSY TUBE COUPL 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 an-818 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 an-818.
Can I order the an-818 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The NUT ASSY TUBE COUPL is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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