ELBOW (P/N an837-4d) - New Surplus
P/N: an837-4d
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 |
|---|---|
| New Surplus | 1 Available |
Product Description
The AN837-4D is a 45-degree flared tube elbow for aircraft hydraulic and fluid line systems. This fitting provides directional change with a 37° seat angle, conforming to AN837 series specifications for bulkhead and universal connections. The elbow accepts 37° flared tube ends and maintains compact routing across structural members and equipment.
Installation requires torquing per aircraft maintenance manual specifications and pressure testing to verify leak-free sealing. Commonly used in hydraulic circuits on general and corporate aircraft where space-constrained line routing demands precision directional fittings.
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 (P/N an837-4d)?
The AN837-4D is a 45-degree flared tube elbow for aircraft hydraulic and fluid line systems. This fitting provides directional change with a 37° seat angle, conforming to AN837 series specifications for bulkhead and universal connections.
Does the an837-4d meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The ELBOW 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 an837-4d 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 an837-4d.
Can I order the an837-4d in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The ELBOW is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.