ELBOW,TUBE (P/N an821-4d) - As Removed
P/N: an821-4d
Category: Fittings & Adapters
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 |
|---|---|
| As Removed | 1 Available |
Product Description
The AN821-4D is a 90-degree aluminum tube elbow conforming to AN821 (SAE AS1034) specifications. This fitting maintains a 37-degree aviation flare seal while changing line direction in confined spaces. Designed for 1/4-inch tube OD with 7/16-20 male thread, it connects with AN818 nut and AN819 sleeve on flared tubing.
Commonly used in aircraft fuel system routing where compact bends are required. Install per aircraft maintenance manual torque specifications and AC 43.13-1B 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 ELBOW,TUBE (P/N an821-4d)?
The AN821-4D is a 90-degree aluminum tube elbow conforming to AN821 (SAE AS1034) specifications. This fitting maintains a 37-degree aviation flare seal while changing line direction in confined spaces.
Does the an821-4d meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The ELBOW,TUBE 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 an821-4d 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 an821-4d.
Can I order the an821-4d in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The ELBOW,TUBE is available in: As Removed. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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